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Sonic Mega Collection/Hidden content

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Select Sonic 1 revision

SonicMegaCollection GC Sonic1REV00.png
SonicMegaCollection GC Sonic1REV01SpikeFix.png

By default, Sonic Mega Collection will load REV01 of Sonic the Hedgehog, but two other revisions can be accessed by entering button codes when displaying the Sonic 1 info screen:

  • To play REV00 (described as "US"), press Up Z Down Z Left Z Right Z.
  • To play REV01 with the "spike bug" fix (described as "JP2"), press Z Z Z Z Z Z Up Down Left Right.

In PAL versions of Sonic Mega Collection, 60Hz mode must be enabled in order to input the above codes (hold B on startup).

Unused content

Sonic CD remnants

When hacking into Sonic Mega Collection, one can find the entire European Sonic the Hedgehog CD manual. Not only that, but a preview version has Sonic CD on the list of games to pick. On the same preview version, in the movies section, you can find "Sonic the Hedgehog Movie Part 1" and "Sonic the Hedgehog Movie Part 2", likely meaning that the Sonic OVA was once in Sonic Mega Collection.

A Sonic Mega Collection prototype released by drx actually has all of this stuff included, however the movies and the Sonic CD game are nonfunctional.

Sample videos

Three videos exist within the game's data and are all copyrighted to CRI Middleware Co. Ltd., which helped Sega with AV-related things for their GameCube titles. While it is likely Sega was testing the Sofdec player and simply didn't take these files out, the movies and songs take up roughly 20% of the data...and even then, there is still empty space on the disc. This space could have easily been used for more games...or even Sonic CD, which allegedly couldn't be included partly because of "space limitations".

sample.sfd

sample.sfd is a test video for CRI's Sofdec video compression technique for developers. If opened by FFPlay or a similar player that can play Sofdec/ADX files, the unused song is played as well (see Music below).

loopbgv.sfd

loopbgv.sfd is nothing more than a CG water rippling effect somewhat like the Sonic Team logo animation from Sonic Adventure. It lacks any sort of sound and only lasts 12 seconds. The purpose of this clip, aside from showing off Sofdec's capabilities, is currently unknown;

smpinter.sfd

smpinter.sfd is a 30-second clip of San Francisco. This might be from CRI, since they do have offices in San Francisco, It is suspected to be a test clip from the Dreamcast development kit.

Music

  • music24a.adx — A three-and-a-half minute track used for a video intended to demonstrate the capabilities of the Sofdec codec (see above).
  • demosound.bin — The music for the 2P Battle menu from Sonic Adventure 2: Battle, likely meant to test the ADX music format.

Cheat device codes

These are cheat codes that can only be used with game enhancer devices. Support for these codes is available in most emulators.

Action Replay

Official codes, PAL version

Code Effect Reference
9X45-8AYJ-T3A07
J5E5-A3QD-F41C5
Master Code (must be on). Codejunkies
RFN8-YDUE-XTEG0
E51J-BMR6-PB357
Have Blue Sphere open. Codejunkies
RKM8-BT5U-2VPWJ
8AZG-TEHP-9C5QQ
Have Knuckles in Sonic 2 open. Codejunkies
FRVM-KFZU-46XDP
JQEC-UT6N-GVKNP
Have Sonic 3 & Knuckles open. Codejunkies
X92D-VKEP-AVGWP
Y0X4-N7EC-2BB32
Have Flicky open. Codejunkies
98EZ-5EEM-WYG8R
UM6F-6Y3B-Q9RAR
Have Ristar open. Codejunkies
NPX6-64D0-VEMBH
ZWYB-XYRM-H85NP
Sonic 1: Infinite lives. Codejunkies
NADH-99V3-9Z3B6
5X97-UXZN-4DAWT
Sonic 1: Always have 99 rings. Codejunkies
UD65-UW6R-DAXDA
1V7B-43PV-X561J
Sonic 1: Freeze timer. Codejunkies
6ATT-XWVF-XVYH2
VTQW-1TF0-A3E29
Sonic 1: Invincible. Codejunkies
CYDK-VP10-TDXC0
EE3J-W5Z5-DDTVE
Sonic 2: Infinite lives. Codejunkies
AB15-NTJX-VAHCH
CFBU-0Q9M-GRN0V
Sonic 2: Always have 99 rings. Codejunkies
029Z-M9ZN-MKPPK
J0RG-UMQT-DWBQF
Sonic 2: Freeze timer. Codejunkies
FAMQ-CAEE-2MMP0
ZY4T-V3JR-7V407
Sonic 2: Invincible. Codejunkies
76TD-18QB-AB81E
2456-QJDP-FW7FC
Sonic 3: Infinite lives. Codejunkies
DYFT-3GPP-230D1
88DF-F7HW-ZRA4U
Sonic 3: Always have 99 rings. Codejunkies
JY6N-FNEQ-U27ND
57FT-Y1B6-Y0UDM
GRKZ-Y1UU-TRQGF
Sonic 3: Infinite air - Sonic and Tails. Codejunkies
5HBP-UFVP-8TW20
KPVD-YKNR-A79ZB
Sonic 3: Freeze timer. Codejunkies
MFT0-KJWC-4RPBV
39TK-CEN2-ZQFJM
Sonic 3: Invincible Sonic. Codejunkies
JQJ9-Q45W-6AJWT
6FZW-HDEQ-88YX5
Sonic 3: Invincible Tails. Codejunkies
EJCB-NDN0-1WXAP
CNK2-UYCW-5U68N
Sonic & Knuckles: Always have 99 rings. Codejunkies
9P25-E2VY-52XG3
TCAV-ZVPZ-G6ENG
Sonic & Knuckles: Freeze timer. Codejunkies
6TN1-NZ5M-NEBK2
4NK7-3PPR-GGY2U
Sonic & Knuckles: Infinite lives. Codejunkies
0THB-GVK6-YA89D
C154-BDXX-T5FKH
Knuckles in Sonic 2: Infinite lives. Codejunkies
TH66-HK5M-VNRZM
G5Q7-UFCR-HBM1B
Knuckles in Sonic 2: Always have 99 rings. Codejunkies
DK9D-QHNB-PJ17F
BBF7-Q5RP-JQX6Y
Knuckles in Sonic 2: Freeze timer. Codejunkies
YRP3-KVCP-YH155
Y0J6-XFDH-BUND7
Knuckles in Sonic 2: Invincible. Codejunkies
2UU4-EM95-UE33P
QPDJ-AVPK-FAQQM
Sonic 3 & Knuckles: Infinite lives. Codejunkies
J000-Y6VZ-9CCGM
D3CX-EHU6-K15KV
Sonic 3 & Knuckles: Always have 99 rings. Codejunkies
RKBH-9PK5-QQYT7
HJ8G-CBCB-AJEDQ
Sonic 3 & Knuckles: Freeze timer. Codejunkies
DGJY-4QX2-210X6
DXHE-8PTP-WR9AZ
Sonic 3D: Flickies' Island: Infinite lives. Codejunkies
M35U-G2J5-YY6P3
9B5T-HKUX-1T6F0
K6RC-727K-P6U1R
Sonic 3D: Flickies' Island: Always have 99 rings. Codejunkies
EECM-UCV9-172ZD
9ZVY-UUC0-KEDK4
Sonic Spinball: Infinite balls. Codejunkies
GURG-A2AD-663ZC
X5MP-TDAE-9BM5U
Sonic Spinball: Have 3 Emeralds/Boss Room Open. Codejunkies
FHB3-0JC9-5NJWW
CUKR-5Z7U-F9BHJ
Ristar: Infinite health. Codejunkies

References


Sonic Mega Collection
SonicMegaCollection title.png

Main page


Manuals
Promotional material
Magazine articles


Development
Hidden content
Bugs