Sonic the Hedgehog 2 (Simon Wai prototype)/Comparisons/Audio

Back to: Sonic the Hedgehog 2 (Simon Wai prototype)/Comparisons.

Music

Many of the music tracks in the Simon Wai prototype are unfinished, using different instruments or playing at different tempos.

Missing are the invincibility, ending, credits and countdown music, as well as the unused track #10, however there are five slots filled with duplicate tracks.

Simon Wai prototype		Final game
ID	Usage	ID	Usage
81	Oil Ocean Zone	08	Casino Night Zone (2-player)
82	Green Hill Zone	02	Emerald Hill Zone
83	Wood Zone, Metropolis Zone	05	Metropolis Zone
84	Casino Night Zone	09	Casino Night Zone
85	Dust Hill Zone	0B	Mystic Cave Zone
86	Hidden Palace Zone	03	Mystic Cave Zone (2-player)
87	Neo Green Hill Zone	07	Aquatic Ruin Zone
88	100 Ring life jingle	0A	Death Egg Zone
89	Unused	12	Special Stage
8A	Level select	11	Options, level select
8B	Level select	11	Options, level select
8C	Unused	14	Death Egg Zone: Giant Mech
8D	Chemical Plant Zone	0E	Chemical Plant Zone
8E	Boss	13	Boss
8F	Unused	0D	Sky Chase Zone
90	Unused	04	Oil Ocean Zone
91	Unused	04	Oil Ocean Zone
92	Unused	0F	Wing Fortress Zone
93	Unused	0C	Emerald Hill Zone (2-player)
94	Unused	01	2-player results
95	Unused	16	Super Sonic
96	Hill Top Zone	06	Hill Top Zone
97	Hill Top Zone	06	Hill Top Zone
98	Extra life	18	Extra life
99	Title screen	19	Title screen
9A	Act complete	1A	Act complete
9B	Game over/Time over	1B	Game over/Time over
9C	Unused	1C	Continue
9D	Unused	1D	Chaos Emerald
9E	Unused	1E	Credits
9F	Unused	1F	Countdown

Sound effects

Prototype ID	Final ID	Name	Used in prototype	Used in final	Comments
A0	20	Jump	Yes	Yes	From Sonic the Hedgehog.
A1	21	Checkpoint	Yes	Yes	From Sonic the Hedgehog.
A2	22
A3	23	Death	Yes	Yes	From Sonic the Hedgehog.
A4	24	Skid	Yes	Yes	From Sonic the Hedgehog.
A5	25
A6	26	Hit by spikes	Yes	Yes	From Sonic the Hedgehog.
A7	27	Push object	No	Yes	From Sonic the Hedgehog. Replaced in final by introduction stars.
A8	28	Enter Special Stage	No		From Sonic the Hedgehog. Replaced in final.
A9	29
AA	2A	Water splash	Yes	Yes	From Sonic the Hedgehog.
AB	2B
AC	2C	Boss hit	Yes	Yes	From Sonic the Hedgehog.
AD	2D	Air bubble	Yes	Yes	From Sonic the Hedgehog.
AE	2E	Fireball			From Sonic the Hedgehog.
AF	2F	Shield	Yes	Yes	From Sonic the Hedgehog.
B0	30	Circular saw	No	No	From Sonic the Hedgehog.
B1	31	Electricity	No	No	From Sonic the Hedgehog.
B2	32	Drown	Yes	Yes	From Sonic the Hedgehog.
B3	33	Lava sprout	No	No	From Sonic the Hedgehog.
B4	34	Bumper	No	Yes	From Sonic the Hedgehog.
B5	35	Ring	Yes	Yes	From Sonic the Hedgehog.
B6	36
B7	37	Labyrinth Zone Act 3 switch	No	No	From Sonic the Hedgehog.
B8	38
B9	39
BA	3A	Special stage diamond	No	No	From Sonic the Hedgehog.
BB	3B	Scrap Brain Zone bridge	No	No	From Sonic the Hedgehog.
BC	3C	Spin Dash release	Yes	Yes
BD	3D	Giant Mech stomp	No	Yes
BE	3E	Spin	Yes	Yes	From Sonic the Hedgehog.
BF	3F	Continue	No	Yes	From Sonic the Hedgehog.
C0	40	Batbrain flap	No		From Sonic the Hedgehog. Replaced in final.
C1	41	Hit enemy	Yes	Yes	From Sonic the Hedgehog.
C2	42	Air counter	Yes	Yes	From Sonic the Hedgehog.
C3	43
C4	44	Boss explosion	Yes	Yes	From Sonic the Hedgehog.
C5	45	End of Act total	No	Yes	From Sonic the Hedgehog.
C6	46	Lose rings	Yes	Yes	From Sonic the Hedgehog.
C7	47	Marble Zone chain	No	No	From Sonic the Hedgehog.
C8	48	Fire			From Sonic the Hedgehog.
C9	49	End of Act bonus	No	No	From Sonic the Hedgehog.
CA	4A	Enter Special Stage	No	Yes	From Sonic the Hedgehog.
CB	4B
CC	4C	Spring	Yes	Yes	From Sonic the Hedgehog.
CD	4D	Switch	Yes	Yes	From Sonic the Hedgehog.
CE	4E	Ring	Yes	Yes	From Sonic the Hedgehog.
CF	4F	Signpost	Yes	Yes	From Sonic the Hedgehog.
D0	50	Catcher Eggman spark.	No	Yes	Pitched too low in prototype.
D1	51		No		Pitched too low in prototype.
D2	52		No		Pitched too low in prototype.
D3	53	2-player Act finished alarm	No	Yes	Pitched too low in prototype.
D4	54	Oil Ocean Zone platform	No	Yes	Pitched too low in prototype.
D5	55	Oil Ocean Zone purple spikes	No	Yes	Pitched too low in prototype.
D6	56	Casino Night Zone lift	No	Yes	Pitched too low in prototype.
D7	57		No		Pitched too low in prototype.
D8	58	Casino Night Zone drop target	No	Yes	Pitched too low in prototype.
D9	59	Casino Night Zone slingshot	No	Yes	Pitched too low in prototype.
DA	5A		No		Pitched too low in prototype.
DB	5B		No		Pitched too low in prototype.
DC	5C		No		Pitched too low in prototype.
DD	5D		No		Pitched too low in prototype.
DE	5E	Propeller	No	Yes	Pitched too low in prototype.
DF	5F	Super Sonic transform	No	Yes	Pitched too low in prototype.
E0	60	Spin dash charge	No		Pitched too low in prototype.
E1	61		No		Blank in prototype
E2	62	Casino Night Zone plunger	No	Yes	Blank in prototype
E3	63		No		Blank in prototype
E4	64		No		Blank in prototype
E5	65		No		Blank in prototype
E6	66		No		Blank in prototype
E7	67		No		Blank in prototype
E8	68		No		Blank in prototype
E9	69				Blank in prototype
EA	6A	Wing Fortress Zone laser	No	Yes	Blank in prototype
EB	6B	Wing Fortress Zone propeller	No	Yes	Blank in prototype
EC	6C	2-player teleport	No	Yes	Blank in prototype
ED	6D	2-player no entry	No	Yes	Blank in prototype
EE	6E	Mecha Sonic noise	No	Yes	Blank in prototype
EF	6F		No		Blank in prototype
F0	70		No		Blank in prototype
F1	71
F2	72
F3	73
F4	74
F5	75
F6	76
F7	77
F8	78
F9	79
FA	7A	Sega jingle	Yes	Yes	From Sonic the Hedgehog.
FB	7B
FC	7C
FD	7D
FE	7E
FF	7F

General comparisons

Simon Wai Prototype

Final game

Instead of playing the 1-Up sound when Sonic gets 100 or 200 rings, the game plays a prototype version of the music from Death Egg Zone (Death Egg Zone plays no music). However, if Sonic breaks open a 1-Up monitor, the proper 1-Up sound will play. The reason why this happens is because sound bank $88, which was the 1-Up sound in the Nick Arcade prototype, is now the Death Egg theme and wasn't overwritten.