Restore Hidden Palace pulsing orb

(Original guide by lavagaming1)

WHAT YOU NEED

before you start dawnload this and place it in your disassembly link title

Preview

in sonic 2 final the hidden palace is removed however some object are still in game so we are going to restore them

Restoring The Green Orbs

first we will restore the palsing orb first go to your S2.asm search for object 71 youll find this code

; ===========================================================================
; ----------------------------------------------------------------------------
; Object 71 - Bridge stake and pulsing orb from Hidden Palace Zone
; ----------------------------------------------------------------------------
; Sprite_112F0:
Obj71:
	moveq	#0,d0
	move.b	routine(a0),d0
	move.w	Obj71_Index(pc,d0.w),d1
	jmp	Obj71_Index(pc,d1.w)
; ===========================================================================
; off_112FE:
Obj71_Index:	offsetTable
		offsetTableEntry.w Obj71_Init	; 0
		offsetTableEntry.w Obj71_Main	; 2
; ---------------------------------------------------------------------------
; dword_11302:
Obj71_InitData:
	objsubdecl 3, Obj11_MapUnc_FC28,  make_art_tile(ArtTile_ArtNem_HPZ_Bridge,3,0), 4, 1		; Hidden Palace bridge
	objsubdecl 0, Obj71_MapUnc_11396, make_art_tile(ArtTile_ArtNem_HPZOrb,3,1), $10, 1		; Hidden Palace pulsing orb
	objsubdecl 0, Obj71_MapUnc_11576, make_art_tile(ArtTile_ArtNem_MtzLavaBubble,2,0), $10, 1	; MTZ lava bubble
; ===========================================================================
; loc_1131A:
Obj71_Init:
	addq.b	#2,routine(a0)
	move.b	subtype(a0),d0
	andi.w	#$F,d0
	lsl.w	#3,d0
	lea	Obj71_InitData(pc),a1
	lea	(a1,d0.w),a1
	move.b	(a1),mapping_frame(a0)
	move.l	(a1)+,mappings(a0)
	move.w	(a1)+,art_tile(a0)
	bsr.w	Adjust2PArtPointer
	ori.b	#4,render_flags(a0)
	move.b	(a1)+,width_pixels(a0)
	move.b	(a1)+,priority(a0)
	move.b	subtype(a0),d0
	andi.w	#$F0,d0
	lsr.b	#4,d0
	move.b	d0,anim(a0)
; loc_1135C:
Obj71_Main:
	lea	(Ani_obj71).l,a1
	bsr.w	AnimateSprite
	bra.w	MarkObjGone
; ===========================================================================
; off_1136A:
Ani_obj71:	offsetTable
		offsetTableEntry.w byte_11372	; 0
		offsetTableEntry.w byte_1137A	; 1
		offsetTableEntry.w byte_11389	; 2
		offsetTableEntry.w byte_11392	; 3
byte_11372:	dc.b   8,  3,  3,  4,  5,  5,  4,$FF
	rev02even
byte_1137A:	dc.b   5,  0,  0,  0,  1,  2,  3,  3,  2,  1,  2,  3,  3,  1,$FF
	rev02even
byte_11389:	dc.b  $B,  0,  1,  2,  3,  4,  5,$FD,  3
	rev02even
byte_11392:	dc.b $7F,  6,$FD,  2
	even

; --------------------------------------------------------------------------------
; sprite mappings
; --------------------------------------------------------------------------------
Obj71_MapUnc_11396:	BINCLUDE "mappings/sprite/obj71_a.bin"
; ----------------------------------------------------------------------------------------
; Unknown sprite mappings
; ----------------------------------------------------------------------------------------
Obj1C_MapUnc_113D6:	BINCLUDE "mappings/sprite/obj1C_a.bin"
; --------------------------------------------------------------------------------
; Unknown sprite mappings
; --------------------------------------------------------------------------------
Obj1C_MapUnc_113EE:	BINCLUDE "mappings/sprite/obj1C_b.bin"
; -------------------------------------------------------------------------------
; sprite mappings
; -------------------------------------------------------------------------------
Obj1C_MapUnc_11406:	BINCLUDE "mappings/sprite/obj1C_c.bin"
; --------------------------------------------------------------------------------
; sprite mappings
; --------------------------------------------------------------------------------
Obj1C_MapUnc_114AE:	BINCLUDE "mappings/sprite/obj1C_d.bin"
; --------------------------------------------------------------------------------
; sprite mappings
; --------------------------------------------------------------------------------
Obj1C_MapUnc_11552:	BINCLUDE "mappings/sprite/obj1C_e.bin"
; ----------------------------------------------------------------------------
; sprite mappings
; ----------------------------------------------------------------------------
Obj71_MapUnc_11576:	BINCLUDE "mappings/sprite/obj71_b.bin"
; ===========================================================================

    if gameRevision<2
	nop
    endif

copy this line ArtNem_HPZ_Bridge search for this code

 
;---------------------------------------------------------------------------------------
; Nemesis compressed art (16 blocks)
; Button			ArtNem_78DAC:
	even
ArtNem_Button:	           BINCLUDE	"art/nemesis/Button.bin"

and paste below it this line  

        even
ArtNem_HPZOrb:             BINCLUDE       "HPZ/Orbs.bin"
         even

Now making the game load the art

in sonic 2 final hidden palace uses the same PlrList as oil ocean if you dont know what is the(PlrList) its basically what tells the game what object that it has to load for each zone so if you didnt make a PlrList for hidden palace just use oil ocean PlrList paste this line in oil ocean PlrList

plreq ArtTile_ArtNem_HPZOrb,ArtNem_HPZOrb

now you should have the palsing orb working in hidden palace