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Difference between revisions of "Sonic the Hedgehog 2 (Nick Arcade prototype)/Hidden content"

From Sonic Retro

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}}
 +
 +
==Source code==
 +
Raw source code can be found within the ROM which appears to relate to [[edit mode]]. Just opening the file in a text editor is enough to see it:
 +
 +
<pre> addsym
 +
nolist
 +
include "equ.lib"
 +
include "macro.lib"
 +
list
 +
 +
xref colichgpat
 +
xref ringpat,itempat,butapat,kanipat,hachipat,togepat
 +
xref fishpat,fish2pat,mogurapat,shimapat2,jyamapat
 +
xref musipat,sjumppat,kamerepat,arumapat,kagebpat,ballpat
 +
xref firepat,fblockpat,signalpat,bobinpat,yoganpat,yogan2pat
 +
xref usapat,yadopat,boxpat,bryukapat,daipat,break2pat,yogancpat
 +
xref batpat,z5daipat,dai2pat,switch2pat,z4daipat
 +
xref elevpat,pedalpat,steppat,funpat,sisoopat,hassyapat
 +
xref brobopat,unipat,yaripat,udaipat,dai3pat,kazaripat,kassyapat
 +
xref awapat,mizupat,boupat,benpat,fetamapat,mawarupat,hagurumapat
 +
xref patapat,yukafpat,nokopat,dai4pat,doorpat,yukaepat,fire6pat
 +
xref elepat,yukaipat,scolipat,imopat,savepat,bigringpat,btenpat
 +
xref actionsub,actwkchk,frameout,playpat,dualmodesub
 +
xref flicpat,usagipat,pengpat,azarpat,fbutapat,niwapat,risupat
 +
 +
xref kaitenpat,prodaipat,buranko0dpat
 +
xref frntlitpat,gempat,wfallpat,pltfrmpat
 +
xref takipat,banepat,dai00pat
 +
 +
xref redzpat,bfishpat,seahorsepat,horsepat
 +
xref stegopat,wasppat,gatorpat,bbatpat,octpat,wfish2pat,snailpat
 +
 +
xdef edit
 +
 +
;------------------------------------------------------------------------------
 +
edit:
 +
moveq #0,d0
 +
move.b editmode,d0
 +
move.w edit_move_tbl(pc,d0.w),d1
 +
jmp edit_move_tbl(pc,d1.w)
 +
edit_move_tbl:
 +
dc.w editinit-edit_move_tbl
 +
dc.w editmove-edit_move_tbl
 +
editinit:
 +
addq.b #word,editmode
 +
move.w scralim_up,editstack
 +
move.w scralim_n_down,editstack2
 +
move.w #$0000,scralim_up
 +
move.w #$0720,scralim_n_down
 +
andi.w #$07ff,playerwk+yposi
 +
andi.w #$07ff,scra_v_posit
 +
andi.w #$03ff,scrb_v_posit
 +
move.b #0,patno(a0)
 +
move.b #0,mstno(a0)
 +
cmpi.b #spgamemd,gmmode
 +
bne.b .jump0
 +
* move.b #7-1,stageno
 +
* move.w #$000,rotspd
 +
* move.w #$000,rotdir
 +
moveq #7-1,d0
 +
bra.b .jump1
 +
.jump0:
 +
moveq #0,d0
 +
move.b stageno,d0
 +
.jump1:
 +
lea edittbl,a2
 +
add.w d0,d0
 +
adda.w (a2,d0.w),a2
 +
move.w (a2)+,d6
 +
cmp.b editno,d6
 +
bhi.b .jump
 +
move.b #0,editno
 +
.jump:
 +
bsr.w editpatchg
 +
move.b #12,edittimer
 +
move.b #1,edittimer+1
 +
editmove:
 +
moveq #7-1,d0
 +
cmpi.b #spgamemd,gmmode
 +
beq.b .jump
 +
moveq #0,d0
 +
move.b stageno,d0
 +
.jump:
 +
lea edittbl,a2
 +
add.w d0,d0
 +
adda.w (a2,d0.w),a2
 +
move.w (a2)+,d6
 +
bsr.w editwalk
 +
* bsr.w dirsprset
 +
jmp actionsub
 +
editwalk:
 +
moveq #0,d4
 +
move.w #1,d1
 +
move.b swdata1+1,d4
 +
andi.w #$0f,d4
 +
bne.b .jump0
 +
move.b swdata1,d0
 +
andi.w #$0f,d0
 +
bne.b .jump
 +
move.b #12,edittimer
 +
move.b #$0f,edittimer+1
 +
bra.w .lend
 +
.jump:
 +
subq.b #1,edittimer
 +
bne.b .jump1
 +
move.b #1,edittimer
 +
addq.b #1,edittimer+1
 +
* cmpi.b #255,edittimer+1
 +
bne.b .jump0
 +
move.b #255,edittimer+1
 +
.jump0:
 +
move.b swdata1,d4
 +
.jump1:
 +
moveq #0,d1
 +
move.b edittimer+1,d1
 +
addq.w #1,d1
 +
swap d1
 +
asr.l #4,d1
 +
move.l yposi(a0),d2
 +
move.l xposi(a0),d3
 +
btst.l #0,d4 *swdata+0
 +
beq.b .jump2
 +
sub.l d1,d2 *yposi
 +
bcc.b .jump2
 +
moveq #0,d2
 +
.jump2:
 +
btst.l #1,d4 *swdata+0
 +
beq.b .jump3
 +
add.l d1,d2 *yposi
 +
cmpi.l #$7ff0000,d2
 +
bcs.b .jump3
 +
move.l #$7ff0000,d2
 +
.jump3:
 +
btst.l #2,d4 *swdata+0
 +
beq.b .jump4
 +
sub.l d1,d3 *xposi
 +
bcc.b .jump4
 +
moveq #0,d3
 +
.jump4:
 +
btst.l #3,d4 *swdata+0
 +
beq.b .jump5
 +
add.l d1,d3 *xposi
 +
.jump5:
 +
move.l d2,yposi(a0)
 +
move.l d3,xposi(a0)
 +
.lend:
 +
btst.b #6,swdata1+0
 +
beq.b .jump7
 +
btst.b #5,swdata1+1 * c button check
 +
beq.b .jump77
 +
subq.b #1,editno
 +
bcc.b .jump6
 +
add.b d6,editno
 +
bra.b .jump6
 +
.jump77:
 +
btst.b #6,swdata1+1
 +
beq.b .jump7
 +
addq.b #1,editno
 +
cmp.b editno,d6
 +
bhi.b .jump6
 +
move.b #0,editno
 +
.jump6:
 +
bra.w editpatchg
 +
.jump7:
 +
btst.b #5,swdata1+1 * c button check
 +
beq.b .jump8
 +
jsr actwkchk
 +
bne.b .worknai ;z=0:ok z=1:no
 +
move.w xposi(a0),xposi(a1)
 +
move.w yposi(a0),yposi(a1)
 +
move.b patbase(a0),actno(a1)
 +
move.b actflg(a0),actflg(a1)
 +
move.b actflg(a0),cddat(a1)
 +
andi.b #$7f,cddat(a1)
 +
moveq #0,d0
 +
move.b editno,d0
 +
lsl.w #3,d0
 +
move.b 4(a2,d0.w),userflag(a1)
 +
rts
 +
.worknai:
 +
.jump8:
 +
btst.b #4,swdata1+1 * b button check
 +
beq.b .jump9
 +
moveq #0,d0
 +
move.w d0,editmode
 +
move.l #playpat,playerwk+patbase
 +
move.w #$0780,playerwk+sproffset
 +
tst.w dualmode ; dual mode check
 +
beq.b .end
 +
move.w #$0780/2,playerwk+sproffset
 +
.end:
 +
move.b d0,playerwk+mstno
 +
move.w d0,xposi+2(a0)
 +
move.w d0,yposi+2(a0)
 +
move.w editstack,scralim_up
 +
move.w editstack2,scralim_n_down
 +
cmpi.b #spgamemd,gmmode
 +
bne.b .jump9
 +
* clr.w rotdir
 +
* move.w #$040,rotspd
 +
* move.l #playpat,playerwk+patbase
 +
* move.w #$0780,playerwk+sproffset
 +
move.b #02,playerwk+mstno
 +
bset.b #cd_ball,playerwk+cddat
 +
bset.b #cd_jump,playerwk+cddat
 +
.jump9:
 +
rts
 +
editpatchg:
 +
moveq #0,d0
 +
move.b editno,d0
 +
lsl.w #3,d0
 +
move.l 0(a2,d0.w),patbase(a0)
 +
move.w 6(a2,d0.w),sproffset(a0)
 +
move.b 5(a2,d0.w),patno(a0)
 +
* move.b 4(a2,d0.w),userflag(a0)
 +
bsr.w dualmodesub
 +
rts
 +
 +
dcblw macro \1,\2,\3,\4,\5
 +
dc.l (\1)*$1000000+(\2)
 +
dc.w (\4)+(\5)*$100
 +
dc.w (\3)
 +
endm
 +
 +
edittbl:
 +
dc.w edit1tbl-edittbl
 +
dc.w edit2tbl-edittbl
 +
dc.w edit3tbl-edittbl
 +
dc.w edit4tbl-edittbl
 +
dc.w edit5tbl-edittbl
 +
dc.w edit6tbl-edittbl
 +
dc.w edit7tbl-edittbl
 +
edit1tbl:
 +
dc.w 14
 +
dcblw ring_act,ringpat,$26bc,0,$00 ;1:
 +
dcblw item_act,itempat,$0680,0,$00 ;2:
 +
dcblw kani_act,kanipat,$0400,0,$00 ;3:
 +
dcblw hachi_act,hachipat,$0444,0,$00 ;4:
 +
dcblw fish_act,fishpat,$0470,0,$00 ;5:
 +
dcblw toge_act,togepat,$04a0,0,$00 ;6:
 +
dcblw shima_act,shimapat2,$4000,0,$00 ;7:
 +
dcblw jyama_act,jyamapat,$66c0,0,$00 ;8:
 +
dcblw musi_act,musipat,$04e0,0,$00 ;9:
 +
dcblw sjump_act,sjumppat,$04a8,0,$00 ;10:
 +
dcblw kamere_act,kamerepat,$249b,0,$00 ;11:
 +
dcblw kageb_act,kagebpat,$434c,0,$00 ;12:
 +
dcblw save_act,savepat,$26bc,0,$01 ;13:
 +
dcblw colichg_act,colichgpat,$26bc,0,$00 ;14:
 +
 +
edit2tbl:
 +
edit3tbl:
 +
;zone0d
 +
dc.w 07
 +
dcblw ring_act,ringpat,$26bc,0,$00 ;01:
 +
dcblw item_act,itempat,$0680,0,$00 ;02:
 +
dcblw sjump_act,sjumppat,$04a8,0,$00 ;03:
 +
dcblw colichg_act,colichgpat,$07bc,0,$00 ;04:
 +
dcblw kaiten_act,kaitenpat,$e000,0,$00 ;05:
 +
dcblw prodai_act,prodaipat,$e418,0,$00 ;06:
 +
dcblw buranko_act,buranko0dpat,$2418,0,$08 ;07:
 +
 +
edit4tbl:
 +
;zone00
 +
dc.w 18
 +
dcblw ring_act,ringpat,$26bc,0,$00 ;1:
 +
dcblw item_act,itempat,$0680,0,$00 ;2:
 +
dcblw save_act,savepat,$047c,0,$01 ;3:
 +
 +
dcblw colichg_act,colichgpat,$26bc,0,$00 ;6:
 +
dcblw taki_act,takipat,$23ae,0,$00 ;7:
 +
dcblw taki_act,takipat,$23ae,3,$02 ;7:
 +
dcblw shima_act,dai00pat,$4000,0,$01 ;8:
 +
dcblw shima_act,dai00pat,$4000,1,$0a ;8:
 +
dcblw toge_act,togepat,$2434,0,$00 ;10:
 +
dcblw sisoo_act,sisoopat,$03ce,0,$00 ;9:
 +
 +
dcblw sjump_act,banepat,$045c,0,$80 ;3: banev
 +
dcblw sjump_act,banepat,$0470,3,$90 ;3: baneh
 +
dcblw sjump_act,banepat,$045c,6,$a0 ;3: banevr
 +
dcblw sjump_act,banepat,$043c,7,$30 ;3: bane45
 +
dcblw sjump_act,banepat,$043c,10,$40 ;3: bane45r
 +
 +
dcblw wasp_act,wasppat,$03e6,0,$00 ;25  ""    ""
 +
dcblw snail_act,snailpat,$0402,0,$00 ;25  ""    ""
 +
dcblw wfish2_act,wfish2pat,$041c,0,$00 ;21  ""    ""
 +
 +
 +
 +
dcblw redz_act,redzpat,$0500,0,$00 ;20: will change
 +
dcblw bfish_act,bfishpat,$2530,0,$00 ;21  ""    ""
 +
dcblw seahorse_act,horsepat,$2570,0,$00 ;22  ""    ""
 +
dcblw skyhorse_act,horsepat,$2570,0,$00 ;23  ""    ""
 +
dcblw stego_act,stegopat,$23c4,0,$00 ;24  ""    ""
 +
dcblw wasp_act,wasppat,$032c,0,$00 ;25  ""    ""
 +
dcblw gator_act,gatorpat,$2300,0,$00 ;26  ""    ""
 +
dcblw bbat_act,bbatpat,$2350,0,$00 ;27  ""    ""
 +
dcblw oct_act,octpat,$238a,0,$00 ;28  ""    ""
 +
 +
edit5tbl:
 +
edit6tbl:
 +
edit7tbl:
 +
;zone08
 +
dc.w 15
 +
dcblw ring_act,ringpat,$26bc,0,$00 ;1:
 +
dcblw item_act,itempat,$0680,0,$00 ;2:
 +
 +
dcblw bgspr_act,frntlitpat,$e485,3,$21 ;3:
 +
dcblw wfall_act,wfallpat,$e415,4,$04 ;4:
 +
dcblw break_act,pltfrmpat,$4475,0,$00 ;5:
 +
dcblw colichg_act,colichgpat,$26bc,0,$00 ;6:
 +
 +
dcblw redz_act,redzpat,$0500,0,$00 ;20: will change
 +
dcblw bfish_act,bfishpat,$2530,0,$00 ;21  ""    ""
 +
dcblw seahorse_act,horsepat,$2570,0,$00 ;22  ""    ""
 +
dcblw skyhorse_act,horsepat,$2570,0,$00 ;23  ""    ""
 +
dcblw stego_act,stegopat,$23c4,0,$00 ;24  ""    ""
 +
dcblw wasp_act,wasppat,$032c,0,$00 ;25  ""    ""
 +
dcblw gator_act,gatorpat,$2300,0,$00 ;26  ""    ""
 +
dcblw bbat_act,bbatpat,$2350,0,$00 ;27  ""    ""
 +
dcblw oct_act,octpat,$238a,0,$00 ;28  ""    ""
 +
 +
;------------------------------------------------------------------------------
 +
align
 +
;------------------------------------------------------------------------------
 +
end
 +
 +
 +
edit2tbl:
 +
dc.w 25
 +
dcblw ring_act,ringpat,$26bc,0,$00 ;1:
 +
dcblw item_act,itempat,$0680,0,$00 ;2:
 +
dcblw sjump_act,sjumppat,$0523,0,$00 ;3:
 +
dcblw fish2_act,fish2pat,$2486,0,$08 ;4:
 +
dcblw mogura_act,mogurapat,$84a6,2,$00 ;5:
 +
dcblw yari_act,yaripat,$03cc,0,$00 ;6:
 +
dcblw yari_act,yaripat,$03cc,3,$02 ;7:
 +
dcblw box_act,boxpat,$43de,0,$00 ;8:
 +
dcblw switch2_act,switch2pat,$0513,0,$00 ;9:
 +
dcblw toge_act,togepat,$051b,0,$00 ;10:
 +
dcblw dai_act,udaipat,$43bc,0,$04 ;11:
 +
dcblw dai3_act,dai3pat,$43e6,0,$01 ;12:
 +
dcblw dai3_act,dai3pat,$43e6,1,$13 ;13:
 +
dcblw dai3_act,dai3pat,$43e6,0,$05 ;14:
 +
dcblw kazari_act,kazaripat,$443e,0,$00 ;15:
 +
dcblw dai3_act,dai3pat,$43e6,2,$27 ;16:
 +
dcblw dai3_act,dai3pat,$43e6,3,$30 ;17:
 +
dcblw kassya_act,kassyapat,$03f6,0,$7f ;18:
 +
dcblw uni_act,unipat,$0467,0,$00 ;19:
 +
dcblw awa_act,awapat,$8348,19,$84 ;20:
 +
dcblw mizu_act,mizupat,$c259,2,$02 ;21:
 +
dcblw mizu_act,mizupat,$c259,9,$09 ;22:
 +
dcblw bou_act,boupat,$43de,0,$00 ;23:
 +
dcblw ben_act,benpat,$4328,0,$02 ;24:
 +
dcblw save_act,savepat,$26bc,0,$01 ;25:
 +
 +
* dcblw dai4_act,dai4pat,$41f0,4,$80 ;25:
 +
edit3tbl:
 +
dc.w 18
 +
dcblw ring_act,ringpat,$26bc,0,$00 ;1:
 +
dcblw item_act,itempat,$0680,0,$00 ;2:
 +
dcblw hachi_act,hachipat,$0444,0,$00 ;3:
 +
dcblw toge_act,togepat,$051b,0,$00 ;4:
 +
dcblw sjump_act,sjumppat,$0523,0,$00 ;5:
 +
dcblw mfire_act,firepat,$0345,0,$00 ;6:
 +
dcblw fblock_act,fblockpat,$4000,0,$00 ;7:
 +
dcblw myogan_act,yoganpat,$63a8,0,$00 ;8:
 +
dcblw yogan2_act,yogan2pat,$63a8,0,$00 ;9:
 +
dcblw box_act,boxpat,$42b8,0,$00 ;10:
 +
dcblw yado_act,yadopat,$247b,0,$00 ;11:
 +
dcblw bryuka_act,bryukapat,$42b8,0,$00 ;12:
 +
dcblw dai_act,daipat,$02b8,0,$00 ;13:
 +
dcblw break2_act,break2pat,$62b8,0,$00 ;14:
 +
dcblw yoganc_act,yogancpat,$8680,0,$00 ;15:
 +
dcblw bat_act,batpat,$04b8,0,$00 ;16:
 +
dcblw imo_act,imopat,$24ff,0,$00 ;17:
 +
dcblw save_act,savepat,$26bc,0,$01 ;18:
 +
edit4tbl:
 +
dc.w 15
 +
dcblw ring_act,ringpat,$26bc,0,$00 ;1:
 +
dcblw item_act,itempat,$0680,0,$00 ;2:
 +
dcblw elev_act,elevpat,$4000,0,$00 ;3:
 +
dcblw break2_act,break2pat,$44e0,2,$00 ;4:
 +
dcblw shima_act,z4daipat,$4000,0,$00 ;5:
 +
dcblw pedal_act,pedalpat,$4000,0,$00 ;6:
 +
dcblw step_act,steppat,$4000,0,$00 ;7:
 +
dcblw fun_act,funpat,$43a0,0,$00 ;8:
 +
dcblw sisoo_act,sisoopat,$0374,0,$00 ;9:
 +
dcblw sjump_act,sjumppat,$0523,0,$00 ;10:
 +
dcblw mfire_act,firepat,$0480,0,$00 ;11:
 +
dcblw bgspr_act,hassyapat,$44d8,0,$00 ;12:
 +
dcblw brobo_act,brobopat,$0400,0,$00 ;13:
 +
dcblw uni_act,unipat,$2429,0,$00 ;14:
 +
dcblw save_act,savepat,$26bc,0,$01 ;15:
 +
edit5tbl:
 +
dc.w 15
 +
dcblw ring_act,ringpat,$26bc,0,$00 ;1:
 +
dcblw item_act,itempat,$0680,0,$00 ;2:
 +
dcblw toge_act,togepat,$051b,0,$00 ;3:
 +
dcblw sjump_act,sjumppat,$0523,0,$00 ;4:
 +
dcblw aruma_act,arumapat,$04b8,0,$00 ;5:
 +
dcblw signal_act,signalpat,$0000,0,$00 ;6:
 +
dcblw bobin_act,bobinpat,$0380,0,$00 ;7:
 +
dcblw kani_act,kanipat,$0400,0,$00 ;8:
 +
dcblw hachi_act,hachipat,$0444,0,$00 ;9:
 +
dcblw yado_act,yadopat,$247b,0,$00 ;10:
 +
dcblw shima_act,z5daipat,$4000,0,$00 ;11:
 +
dcblw dai2_act,dai2pat,$4000,0,$00 ;12:
 +
dcblw switch2_act,switch2pat,$0513,0,$00 ;13:
 +
dcblw imo_act,imopat,$24ff,0,$00 ;14:
 +
dcblw save_act,savepat,$26bc,0,$01 ;15:
 +
edit6tbl:
 +
dc.w 29
 +
dcblw ring_act,ringpat,$26bc,0,$00 ;1:
 +
dcblw item_act,itempat,$0680,0,$00 ;2:
 +
dcblw brobo_act,brobopat,$0400,0,$00 ;3:
 +
dcblw uni_act,unipat,$0429,0,$00 ;4:
 +
dcblw imo_act,imopat,$22b0,0,$00 ;5:
 +
dcblw buranko_act,fetamapat,$4391,2,$07 ;6:
 +
dcblw haguruma_act,hagurumapat,$c344,00,$e0 ;7:
 +
dcblw dai_act,daipat,$22c0,2,$28 ;8:
 +
dcblw switch2_act,switch2pat,$0513,0,$00 ;9:
 +
dcblw pata_act,patapat,$4492,0,$03 ;10:
 +
dcblw pata_act,yukafpat,$04df,0,$83 ;11:
 +
dcblw noko_act,nokopat,$43b5,0,$02 ;12:
 +
dcblw break2_act,break2pat,$43f5,0,$00 ;13:
 +
dcblw dai_act,daipat,$4460,3,$39 ;14:
 +
dcblw dai4_act,dai4pat,$22c0,0,$00 ;15:
 +
dcblw door_act,doorpat,$42e8,0,$00 ;16:
 +
dcblw dai4_act,dai4pat,$22c0,1,$13 ;17:
 +
dcblw noko_act,nokopat,$43b5,0,$01 ;18:
 +
dcblw dai4_act,dai4pat,$22c0,1,$24 ;19:
 +
dcblw noko_act,nokopat,$43b5,2,$04 ;20:
 +
dcblw dai4_act,dai4pat,$22c0,1,$34 ;21:
 +
dcblw yukae_act,yukaepat,$44c3,0,$00 ;22:
 +
dcblw fire6_act,fire6pat,$83d9,0,$64 ;23:
 +
dcblw fire6_act,fire6pat,$83d9,11,$64 ;24:
 +
dcblw ele_act,elepat,$047e,0,$04 ;25:
 +
dcblw yukai_act,yukaipat,$42f0,0,$00 ;26:
 +
dcblw scoli_act,scolipat,$8680,0,$11 ;27:
 +
dcblw buta_act,butapat,$2302,0,$04 ;28:
 +
dcblw save_act,savepat,$26bc,0,$01 ;29:
 +
 +
* dcblw ring_act,playpat,$0780,50,$00 ;28:
 +
* dcblw usa_act,usapat,$0448,0,$00 ;5:
 +
* dcblw mawaru_act,mawarupat,$4348,16,$00 ;7:
 +
 +
edit7tbl:
 +
dc.w 02 *13
 +
dcblw ring_act,ringpat,$26bc,0,$00 ;1:
 +
dcblw ring_act,ringpat,$26bc,8,$00 ;2:
 +
* dcblw bobin_act,bobinpat,$0380,0,$00 ;2:
 +
* dcblw usagi_act,flicpat,$05a0,0,$0a ;3
 +
* dcblw usagi_act,flicpat,$05a0,0,$0b ;4
 +
* dcblw usagi_act,flicpat,$05a0,0,$0c ;5
 +
* dcblw usagi_act,usagipat,$0553,0,$0d ;6
 +
* dcblw usagi_act,usagipat,$0553,0,$0e ;7
 +
* dcblw usagi_act,pengpat,$0573,0,$0f ;8
 +
* dcblw usagi_act,pengpat,$0573,0,$10 ;9
 +
* dcblw usagi_act,azarpat,$0585,0,$11 ;10
 +
* dcblw usagi_act,fbutapat,$0593,0,$12 ;11
 +
* dcblw usagi_act,niwapat,$0565,0,$13 ;12
 +
* dcblw usagi_act,risupat,$05b3,0,$14 ;13</pre>
 +
 +
 +
Notably among the listed objects are names of several scrapped enemies, including [[Redz]], [[BFish]], [[Stego]], [[Gator]] and [[BBat]]. The two versions of [[Aquis]] are known as "Seahorse" and "Skyhorse", respectively.
 +
 +
Had these enemies made it into the final product, they would have likely been given official names, however without further documentation, this is as close as we can get.
  
 
==References==
 
==References==

Revision as of 12:05, 11 February 2021

Back to: Sonic the Hedgehog 2 (Nick Arcade prototype).

Level select

Ss.nas2bls.png

Press Up Down Down Down Down Up Start on the title screen.

Edit mode

Notavailable.svg

Press C C Up Down Down Down Down Up then A+Start on the title screen.

2-Player VS mode

Sonic2NA Comparison EHZ 2P 1.png

Highlight a Zone in the stage select and press B+Start to play the level in 2-player split-screen mode. Other than having a second screen to watch Tails, gameplay remains unchanged from 1-player mode.

Adjust the water level

Sonic2NA MD WaterLevel.png

Pressing Up and Down on the second control pad will adjust the water level in stages which have water (although in this build, this means only Hidden Palace Zone (Spring Yard Zone)).

Unused content

Art

Art Description
A JIS X 0201 character set, minus katakana characters. Its purpose is unclear.
Sonic turning sprites.
Animation for Sonic running faster than normal.
Animation for Sonic running even faster than normal.
Sonic pulling animation.
Sonic balancing animation, likely for when the player is mere pixels away from falling.
A standard switch. The object hasn't been coded at this stage yet.
Fire. Possibly a flaming log, as Buzzer was planned to burn bridges according to concept art.[1]
Animated tiles, possibly for the Chemical Plant Zone boss.
Ball. Though seen in concept art, coding for this object never seems to have been started.
Bubbler's Mother graphics.
Bubbler graphics.
Prototype Crawl graphics.
Dirt, possibly associated with Crawl.
16x16 block, possibly for Hill Top Zone
Fire for Hill Top Zone. Different to what is seen in the final game.
Door for Hill Top Zone. It's identical to the one in the final game, it just hasn't been coded yet.
Hidden Palace Zone background piece.
Hidden Palace Zone object.
Smoke.

Objects

Placeable in edit mode

Art Description
Blank monitor, similar to the one in the original Sonic the Hedgehog. Does nothing.
The prototype Star Post seen in earlier versions of the game still exists. When deactivated, it is yellow, rapidly flashing white and red once Sonic has passed by.
The seesaw from Hill Top Zone (Scrap Brain Zone) can be placed in Emerald Hill Zone (Star Light Zone), complete with different colour scheme.
Flipping platforms for Chemical Plant Zone (Marble Zone). They don't have the correct art, but seem to work fine.
The Sonic 1 swinging platform still exists in Marble Zone, albeit with broken graphics.
BFish in Hidden Palace Zone (Spring Yard Zone).
Aquis in Hidden Palace Zone (Spring Yard Zone).
Another variant of Aquis in Hidden Palace Zone. This one fires a projectile.
Stego with broken graphics in Hidden Palace Zone.
Gator with broken graphics in Hidden Palace Zone.
This seems to be the prototype Octus from Oil Ocean Zone, hovering, firing a projectile then moving off-screen to the left or right. Again, found in Hidden Palace Zone.

Others

Art Description
Eggman Mark. Does nothing.
? monitor. Does nothing.
Spring monitor. Does nothing.
Octus with correct graphics.
Stego with correct graphics.
Gator with correct graphics.
Aquis with correct graphics (and loads of variants).
BFish.

Source code

Raw source code can be found within the ROM which appears to relate to edit mode. Just opening the file in a text editor is enough to see it: 

	addsym
	nolist
	include	"equ.lib"
	include	"macro.lib"
	list

	xref	colichgpat
	xref	ringpat,itempat,butapat,kanipat,hachipat,togepat
	xref	fishpat,fish2pat,mogurapat,shimapat2,jyamapat
	xref	musipat,sjumppat,kamerepat,arumapat,kagebpat,ballpat
	xref	firepat,fblockpat,signalpat,bobinpat,yoganpat,yogan2pat
	xref	usapat,yadopat,boxpat,bryukapat,daipat,break2pat,yogancpat
	xref	batpat,z5daipat,dai2pat,switch2pat,z4daipat
	xref	elevpat,pedalpat,steppat,funpat,sisoopat,hassyapat
	xref	brobopat,unipat,yaripat,udaipat,dai3pat,kazaripat,kassyapat
	xref	awapat,mizupat,boupat,benpat,fetamapat,mawarupat,hagurumapat
	xref	patapat,yukafpat,nokopat,dai4pat,doorpat,yukaepat,fire6pat
	xref	elepat,yukaipat,scolipat,imopat,savepat,bigringpat,btenpat
	xref	actionsub,actwkchk,frameout,playpat,dualmodesub
	xref	flicpat,usagipat,pengpat,azarpat,fbutapat,niwapat,risupat

	xref	kaitenpat,prodaipat,buranko0dpat
	xref	frntlitpat,gempat,wfallpat,pltfrmpat
	xref	takipat,banepat,dai00pat

	xref	redzpat,bfishpat,seahorsepat,horsepat
	xref	stegopat,wasppat,gatorpat,bbatpat,octpat,wfish2pat,snailpat

	xdef	edit

;------------------------------------------------------------------------------
edit:
	moveq	#0,d0
	move.b	editmode,d0
	move.w	edit_move_tbl(pc,d0.w),d1
	jmp	edit_move_tbl(pc,d1.w)
edit_move_tbl:
	dc.w	editinit-edit_move_tbl
	dc.w	editmove-edit_move_tbl
editinit:
	addq.b	#word,editmode
	move.w	scralim_up,editstack
	move.w	scralim_n_down,editstack2
	move.w	#$0000,scralim_up
	move.w	#$0720,scralim_n_down
	andi.w	#$07ff,playerwk+yposi
	andi.w	#$07ff,scra_v_posit
	andi.w	#$03ff,scrb_v_posit
	move.b	#0,patno(a0)
	move.b	#0,mstno(a0)
	cmpi.b	#spgamemd,gmmode
	bne.b	.jump0
*	move.b	#7-1,stageno
*	move.w	#$000,rotspd
*	move.w	#$000,rotdir
	moveq	#7-1,d0
	bra.b	.jump1
.jump0:
	moveq	#0,d0
	move.b	stageno,d0
.jump1:
	lea	edittbl,a2
	add.w	d0,d0
	adda.w	(a2,d0.w),a2
	move.w	(a2)+,d6
	cmp.b	editno,d6
	bhi.b	.jump
	move.b	#0,editno
.jump:
	bsr.w	editpatchg
	move.b	#12,edittimer
	move.b	#1,edittimer+1
editmove:
	moveq	#7-1,d0
	cmpi.b	#spgamemd,gmmode
	beq.b	.jump
	moveq	#0,d0
	move.b	stageno,d0
.jump:
	lea	edittbl,a2
	add.w	d0,d0
	adda.w	(a2,d0.w),a2
	move.w	(a2)+,d6
	bsr.w	editwalk
*	bsr.w	dirsprset
	jmp	actionsub
editwalk:
	moveq	#0,d4
	move.w	#1,d1
	move.b	swdata1+1,d4
	andi.w	#$0f,d4
	bne.b	.jump0
	move.b	swdata1,d0
	andi.w	#$0f,d0
	bne.b	.jump
	move.b	#12,edittimer
	move.b	#$0f,edittimer+1
	bra.w	.lend
.jump:
	subq.b	#1,edittimer
	bne.b	.jump1
	move.b	#1,edittimer
	addq.b	#1,edittimer+1
*	cmpi.b	#255,edittimer+1
	bne.b	.jump0
	move.b	#255,edittimer+1
.jump0:
	move.b	swdata1,d4
.jump1:
	moveq	#0,d1
	move.b	edittimer+1,d1
	addq.w	#1,d1
	swap	d1
	asr.l	#4,d1
	move.l	yposi(a0),d2
	move.l	xposi(a0),d3
	btst.l	#0,d4			*swdata+0
	beq.b	.jump2
	sub.l	d1,d2			*yposi
	bcc.b	.jump2
	moveq	#0,d2
.jump2:
	btst.l	#1,d4			*swdata+0
	beq.b	.jump3
	add.l	d1,d2			*yposi
	cmpi.l	#$7ff0000,d2
	bcs.b	.jump3
	move.l	#$7ff0000,d2
.jump3:
	btst.l	#2,d4			*swdata+0
	beq.b	.jump4
	sub.l	d1,d3			*xposi
	bcc.b	.jump4
	moveq	#0,d3
.jump4:
	btst.l	#3,d4			*swdata+0
	beq.b	.jump5
	add.l	d1,d3			*xposi
.jump5:
	move.l	d2,yposi(a0)
	move.l	d3,xposi(a0)
.lend:
	btst.b	#6,swdata1+0
	beq.b	.jump7
	btst.b	#5,swdata1+1		* c button check
	beq.b	.jump77
	subq.b	#1,editno
	bcc.b	.jump6
	add.b	d6,editno
	bra.b	.jump6
.jump77:
	btst.b	#6,swdata1+1
	beq.b	.jump7
	addq.b	#1,editno
	cmp.b	editno,d6
	bhi.b	.jump6
	move.b	#0,editno
.jump6:
	bra.w	editpatchg
.jump7:
	btst.b	#5,swdata1+1		* c button check
	beq.b	.jump8
	jsr	actwkchk
	bne.b	.worknai		;z=0:ok	z=1:no
	move.w	xposi(a0),xposi(a1)
	move.w	yposi(a0),yposi(a1)
	move.b	patbase(a0),actno(a1)
	move.b	actflg(a0),actflg(a1)
	move.b	actflg(a0),cddat(a1)
	andi.b	#$7f,cddat(a1)
	moveq	#0,d0
	move.b	editno,d0
	lsl.w	#3,d0
	move.b	4(a2,d0.w),userflag(a1)
	rts
.worknai:
.jump8:
	btst.b	#4,swdata1+1		* b button check
	beq.b	.jump9
	moveq	#0,d0
	move.w	d0,editmode
	move.l	#playpat,playerwk+patbase
	move.w	#$0780,playerwk+sproffset
	tst.w	dualmode		; dual mode check
	beq.b	.end
	move.w	#$0780/2,playerwk+sproffset
.end:
	move.b	d0,playerwk+mstno
	move.w	d0,xposi+2(a0)
	move.w	d0,yposi+2(a0)
	move.w	editstack,scralim_up
	move.w	editstack2,scralim_n_down
	cmpi.b	#spgamemd,gmmode
	bne.b	.jump9
*	clr.w	rotdir
*	move.w	#$040,rotspd
*	move.l	#playpat,playerwk+patbase
*	move.w	#$0780,playerwk+sproffset
	move.b	#02,playerwk+mstno
	bset.b	#cd_ball,playerwk+cddat
	bset.b	#cd_jump,playerwk+cddat
.jump9:
	rts
editpatchg:
	moveq	#0,d0
	move.b	editno,d0
	lsl.w	#3,d0
	move.l	0(a2,d0.w),patbase(a0)
	move.w	6(a2,d0.w),sproffset(a0)
	move.b	5(a2,d0.w),patno(a0)
*	move.b	4(a2,d0.w),userflag(a0)
	bsr.w	dualmodesub
	rts

dcblw	macro	\1,\2,\3,\4,\5
	dc.l	(\1)*$1000000+(\2)
	dc.w	(\4)+(\5)*$100
	dc.w	(\3)
	endm

edittbl:
	dc.w	edit1tbl-edittbl
	dc.w	edit2tbl-edittbl
	dc.w	edit3tbl-edittbl
	dc.w	edit4tbl-edittbl
	dc.w	edit5tbl-edittbl
	dc.w	edit6tbl-edittbl
	dc.w	edit7tbl-edittbl
edit1tbl:
	dc.w	14
	dcblw	ring_act,ringpat,$26bc,0,$00		;1:
	dcblw	item_act,itempat,$0680,0,$00		;2:
	dcblw	kani_act,kanipat,$0400,0,$00		;3:
	dcblw	hachi_act,hachipat,$0444,0,$00		;4:
	dcblw	fish_act,fishpat,$0470,0,$00		;5:
	dcblw	toge_act,togepat,$04a0,0,$00		;6:
	dcblw	shima_act,shimapat2,$4000,0,$00		;7:
	dcblw	jyama_act,jyamapat,$66c0,0,$00		;8:
	dcblw	musi_act,musipat,$04e0,0,$00		;9:
	dcblw	sjump_act,sjumppat,$04a8,0,$00		;10:
	dcblw	kamere_act,kamerepat,$249b,0,$00	;11:
	dcblw	kageb_act,kagebpat,$434c,0,$00		;12:
	dcblw	save_act,savepat,$26bc,0,$01		;13:
	dcblw	colichg_act,colichgpat,$26bc,0,$00	;14:

edit2tbl:
edit3tbl:
;zone0d
	dc.w	07
	dcblw	ring_act,ringpat,$26bc,0,$00		;01:
	dcblw	item_act,itempat,$0680,0,$00		;02:
	dcblw	sjump_act,sjumppat,$04a8,0,$00		;03:
	dcblw	colichg_act,colichgpat,$07bc,0,$00	;04:
	dcblw	kaiten_act,kaitenpat,$e000,0,$00	;05:
	dcblw	prodai_act,prodaipat,$e418,0,$00	;06:
	dcblw	buranko_act,buranko0dpat,$2418,0,$08	;07:

edit4tbl:
;zone00
	dc.w	18
	dcblw	ring_act,ringpat,$26bc,0,$00		;1:
	dcblw	item_act,itempat,$0680,0,$00		;2:
	dcblw	save_act,savepat,$047c,0,$01		;3:

	dcblw	colichg_act,colichgpat,$26bc,0,$00	;6:
	dcblw	taki_act,takipat,$23ae,0,$00		;7:
	dcblw	taki_act,takipat,$23ae,3,$02		;7:
	dcblw	shima_act,dai00pat,$4000,0,$01		;8:
	dcblw	shima_act,dai00pat,$4000,1,$0a		;8:
	dcblw	toge_act,togepat,$2434,0,$00		;10:
	dcblw	sisoo_act,sisoopat,$03ce,0,$00		;9:

	dcblw	sjump_act,banepat,$045c,0,$80		;3: banev
	dcblw	sjump_act,banepat,$0470,3,$90		;3: baneh
	dcblw	sjump_act,banepat,$045c,6,$a0		;3: banevr
	dcblw	sjump_act,banepat,$043c,7,$30		;3: bane45
	dcblw	sjump_act,banepat,$043c,10,$40		;3: bane45r

	dcblw	wasp_act,wasppat,$03e6,0,$00		;25   ""    ""
	dcblw	snail_act,snailpat,$0402,0,$00		;25   ""    ""
	dcblw	wfish2_act,wfish2pat,$041c,0,$00	;21   ""    ""



	dcblw	redz_act,redzpat,$0500,0,$00		;20: will change
	dcblw	bfish_act,bfishpat,$2530,0,$00		;21   ""    ""
	dcblw	seahorse_act,horsepat,$2570,0,$00	;22   ""    ""
	dcblw	skyhorse_act,horsepat,$2570,0,$00	;23   ""    ""
	dcblw	stego_act,stegopat,$23c4,0,$00		;24   ""    ""
	dcblw	wasp_act,wasppat,$032c,0,$00		;25   ""    ""
	dcblw	gator_act,gatorpat,$2300,0,$00		;26   ""    ""
	dcblw	bbat_act,bbatpat,$2350,0,$00		;27   ""    ""
	dcblw	oct_act,octpat,$238a,0,$00		;28   ""    ""

edit5tbl:
edit6tbl:
edit7tbl:
;zone08
	dc.w	15
	dcblw	ring_act,ringpat,$26bc,0,$00		;1:
	dcblw	item_act,itempat,$0680,0,$00		;2:

	dcblw	bgspr_act,frntlitpat,$e485,3,$21	;3:
	dcblw	wfall_act,wfallpat,$e415,4,$04		;4:
	dcblw	break_act,pltfrmpat,$4475,0,$00		;5:
	dcblw	colichg_act,colichgpat,$26bc,0,$00	;6:

	dcblw	redz_act,redzpat,$0500,0,$00		;20: will change
	dcblw	bfish_act,bfishpat,$2530,0,$00		;21   ""    ""
	dcblw	seahorse_act,horsepat,$2570,0,$00	;22   ""    ""
	dcblw	skyhorse_act,horsepat,$2570,0,$00	;23   ""    ""
	dcblw	stego_act,stegopat,$23c4,0,$00		;24   ""    ""
	dcblw	wasp_act,wasppat,$032c,0,$00		;25   ""    ""
	dcblw	gator_act,gatorpat,$2300,0,$00		;26   ""    ""
	dcblw	bbat_act,bbatpat,$2350,0,$00		;27   ""    ""
	dcblw	oct_act,octpat,$238a,0,$00		;28   ""    ""

;------------------------------------------------------------------------------
	align
;------------------------------------------------------------------------------
	end


edit2tbl:
	dc.w	25
	dcblw	ring_act,ringpat,$26bc,0,$00		;1:
	dcblw	item_act,itempat,$0680,0,$00		;2:
	dcblw	sjump_act,sjumppat,$0523,0,$00		;3:
	dcblw	fish2_act,fish2pat,$2486,0,$08		;4:
	dcblw	mogura_act,mogurapat,$84a6,2,$00	;5:
	dcblw	yari_act,yaripat,$03cc,0,$00		;6:
	dcblw	yari_act,yaripat,$03cc,3,$02		;7:
	dcblw	box_act,boxpat,$43de,0,$00		;8:
	dcblw	switch2_act,switch2pat,$0513,0,$00	;9:
	dcblw	toge_act,togepat,$051b,0,$00		;10:
	dcblw	dai_act,udaipat,$43bc,0,$04		;11:
	dcblw	dai3_act,dai3pat,$43e6,0,$01		;12:
	dcblw	dai3_act,dai3pat,$43e6,1,$13		;13:
	dcblw	dai3_act,dai3pat,$43e6,0,$05		;14:
	dcblw	kazari_act,kazaripat,$443e,0,$00	;15:
	dcblw	dai3_act,dai3pat,$43e6,2,$27		;16:
	dcblw	dai3_act,dai3pat,$43e6,3,$30		;17:
	dcblw	kassya_act,kassyapat,$03f6,0,$7f	;18:
	dcblw	uni_act,unipat,$0467,0,$00		;19:
	dcblw	awa_act,awapat,$8348,19,$84		;20:
	dcblw	mizu_act,mizupat,$c259,2,$02		;21:
	dcblw	mizu_act,mizupat,$c259,9,$09		;22:
	dcblw	bou_act,boupat,$43de,0,$00		;23:
	dcblw	ben_act,benpat,$4328,0,$02		;24:
	dcblw	save_act,savepat,$26bc,0,$01		;25:

*	dcblw	dai4_act,dai4pat,$41f0,4,$80		;25:
edit3tbl:
	dc.w	18
	dcblw	ring_act,ringpat,$26bc,0,$00		;1:
	dcblw	item_act,itempat,$0680,0,$00		;2:
	dcblw	hachi_act,hachipat,$0444,0,$00		;3:
	dcblw	toge_act,togepat,$051b,0,$00		;4:
	dcblw	sjump_act,sjumppat,$0523,0,$00		;5:
	dcblw	mfire_act,firepat,$0345,0,$00		;6:
	dcblw	fblock_act,fblockpat,$4000,0,$00	;7:
	dcblw	myogan_act,yoganpat,$63a8,0,$00		;8:
	dcblw	yogan2_act,yogan2pat,$63a8,0,$00	;9:
	dcblw	box_act,boxpat,$42b8,0,$00		;10:
	dcblw	yado_act,yadopat,$247b,0,$00		;11:
	dcblw	bryuka_act,bryukapat,$42b8,0,$00	;12:
	dcblw	dai_act,daipat,$02b8,0,$00		;13:
	dcblw	break2_act,break2pat,$62b8,0,$00	;14:
	dcblw	yoganc_act,yogancpat,$8680,0,$00	;15:
	dcblw	bat_act,batpat,$04b8,0,$00		;16:
	dcblw	imo_act,imopat,$24ff,0,$00		;17:
	dcblw	save_act,savepat,$26bc,0,$01		;18:
edit4tbl:
	dc.w	15
	dcblw	ring_act,ringpat,$26bc,0,$00		;1:
	dcblw	item_act,itempat,$0680,0,$00		;2:
	dcblw	elev_act,elevpat,$4000,0,$00		;3:
	dcblw	break2_act,break2pat,$44e0,2,$00	;4:
	dcblw	shima_act,z4daipat,$4000,0,$00		;5:
	dcblw	pedal_act,pedalpat,$4000,0,$00		;6:
	dcblw	step_act,steppat,$4000,0,$00		;7:
	dcblw	fun_act,funpat,$43a0,0,$00		;8:
	dcblw	sisoo_act,sisoopat,$0374,0,$00		;9:
	dcblw	sjump_act,sjumppat,$0523,0,$00		;10:
	dcblw	mfire_act,firepat,$0480,0,$00		;11:
	dcblw	bgspr_act,hassyapat,$44d8,0,$00		;12:
	dcblw	brobo_act,brobopat,$0400,0,$00		;13:
	dcblw	uni_act,unipat,$2429,0,$00		;14:
	dcblw	save_act,savepat,$26bc,0,$01		;15:
edit5tbl:
	dc.w	15
	dcblw	ring_act,ringpat,$26bc,0,$00		;1:
	dcblw	item_act,itempat,$0680,0,$00		;2:
	dcblw	toge_act,togepat,$051b,0,$00		;3:
	dcblw	sjump_act,sjumppat,$0523,0,$00		;4:
	dcblw	aruma_act,arumapat,$04b8,0,$00		;5:
	dcblw	signal_act,signalpat,$0000,0,$00	;6:
	dcblw	bobin_act,bobinpat,$0380,0,$00		;7:
	dcblw	kani_act,kanipat,$0400,0,$00		;8:
	dcblw	hachi_act,hachipat,$0444,0,$00		;9:
	dcblw	yado_act,yadopat,$247b,0,$00		;10:
	dcblw	shima_act,z5daipat,$4000,0,$00		;11:
	dcblw	dai2_act,dai2pat,$4000,0,$00		;12:
	dcblw	switch2_act,switch2pat,$0513,0,$00	;13:
	dcblw	imo_act,imopat,$24ff,0,$00		;14:
	dcblw	save_act,savepat,$26bc,0,$01		;15:
edit6tbl:
	dc.w	29
	dcblw	ring_act,ringpat,$26bc,0,$00		;1:
	dcblw	item_act,itempat,$0680,0,$00		;2:
	dcblw	brobo_act,brobopat,$0400,0,$00		;3:
	dcblw	uni_act,unipat,$0429,0,$00		;4:
	dcblw	imo_act,imopat,$22b0,0,$00		;5:
	dcblw	buranko_act,fetamapat,$4391,2,$07	;6:
	dcblw	haguruma_act,hagurumapat,$c344,00,$e0	;7:
	dcblw	dai_act,daipat,$22c0,2,$28		;8:
	dcblw	switch2_act,switch2pat,$0513,0,$00	;9:
	dcblw	pata_act,patapat,$4492,0,$03		;10:
	dcblw	pata_act,yukafpat,$04df,0,$83		;11:
	dcblw	noko_act,nokopat,$43b5,0,$02		;12:
	dcblw	break2_act,break2pat,$43f5,0,$00	;13:
	dcblw	dai_act,daipat,$4460,3,$39		;14:
	dcblw	dai4_act,dai4pat,$22c0,0,$00		;15:
	dcblw	door_act,doorpat,$42e8,0,$00		;16:
	dcblw	dai4_act,dai4pat,$22c0,1,$13		;17:
	dcblw	noko_act,nokopat,$43b5,0,$01		;18:
	dcblw	dai4_act,dai4pat,$22c0,1,$24		;19:
	dcblw	noko_act,nokopat,$43b5,2,$04		;20:
	dcblw	dai4_act,dai4pat,$22c0,1,$34		;21:
	dcblw	yukae_act,yukaepat,$44c3,0,$00		;22:
	dcblw	fire6_act,fire6pat,$83d9,0,$64		;23:
	dcblw	fire6_act,fire6pat,$83d9,11,$64		;24:
	dcblw	ele_act,elepat,$047e,0,$04		;25:
	dcblw	yukai_act,yukaipat,$42f0,0,$00		;26:
	dcblw	scoli_act,scolipat,$8680,0,$11		;27:
	dcblw	buta_act,butapat,$2302,0,$04		;28:
	dcblw	save_act,savepat,$26bc,0,$01		;29:

*	dcblw	ring_act,playpat,$0780,50,$00		;28:
*	dcblw	usa_act,usapat,$0448,0,$00		;5:
*	dcblw	mawaru_act,mawarupat,$4348,16,$00	;7:

edit7tbl:
	dc.w	02	*13
	dcblw	ring_act,ringpat,$26bc,0,$00		;1:
	dcblw	ring_act,ringpat,$26bc,8,$00		;2:
*	dcblw	bobin_act,bobinpat,$0380,0,$00		;2:
*	dcblw	usagi_act,flicpat,$05a0,0,$0a		;3
*	dcblw	usagi_act,flicpat,$05a0,0,$0b		;4
*	dcblw	usagi_act,flicpat,$05a0,0,$0c		;5
*	dcblw	usagi_act,usagipat,$0553,0,$0d		;6
*	dcblw	usagi_act,usagipat,$0553,0,$0e		;7
*	dcblw	usagi_act,pengpat,$0573,0,$0f		;8
*	dcblw	usagi_act,pengpat,$0573,0,$10		;9
*	dcblw	usagi_act,azarpat,$0585,0,$11		;10
*	dcblw	usagi_act,fbutapat,$0593,0,$12		;11
*	dcblw	usagi_act,niwapat,$0565,0,$13		;12
*	dcblw	usagi_act,risupat,$05b3,0,$14		;13


Notably among the listed objects are names of several scrapped enemies, including Redz, BFish, Stego, Gator and BBat. The two versions of Aquis are known as "Seahorse" and "Skyhorse", respectively.

Had these enemies made it into the final product, they would have likely been given official names, however without further documentation, this is as close as we can get.

References

  1. ↑ File:Sket bee.png


Sonic the Hedgehog 2 (Nick Arcade prototype), prototype version of Sonic the Hedgehog 2 (16-bit)
S2b title.png

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Part of Sonic the Hedgehog 2 (16-bit) development

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