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Sonic Mega Collection/Hidden content

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Select Sonic 1 revision

SonicMegaCollection GC Sonic1REV00.png
SonicMegaCollection GC Sonic1REV01.png
SonicMegaCollection GC Sonic1REV01SpikeFix.png

By default, Sonic Mega Collection will load REV01 of Sonic the Hedgehog with the "spike bug" fix, 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 WITHOUT the "spike bug" fix (described as "JP"), press Up Down Down Down Left Right Z.
  • To replay the version by default (described as "JP2"), start the game then return to the menu, or 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 or, if playing on a Wii, select 60Hz in the Wii settings). Otherwise, it will play the standard US/PAL version.

Unused content

Early menu

SonicMegaCollection GC EarlyMenu.png

A very early game select menu in Japanese exists on the disc, left over from an earlier stage of development than the 2002-08-15 prototype. The original 3D Studio Max file of the menu is present in the same folder, as well as a breakdown of all the menu's textures in PNG format. The menu translates to:

GAMES
Sonic the Hedgehog
Sonic the Hedgehog 2
Dr. Robotnik's Mean Bean Machine
Ristar the Shooting Star
Flicky
Monster Lair
Vectorman

The rest of the menu is a series of A's in hiragana (あ). Vectorman would later be included in Sonic Gems Collection, but not Monster Lair.

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.

Audio

Audio Description
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.

Demo leftovers

Present in the "demo" folder on the disc are .tpl files that have graphics for a demo, all in Japanese.

Art Description
The title screen for the demo, which uses the layout of the prototype's title screen.
Title screen text informing the user to press Start.
Early Game Select graphics for the demo.
Various title screens used for the Game Select screen and menu control information. Some of the title screens are dimmed to indicate they were not available to play.
A screen that would be displayed when the demo ends.

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

References


Sonic Mega Collection
SonicMegaCollection title.png

Main page


Manuals
Promotional material
Magazine articles
Reception


Development
Hidden content
Bugs