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Sonic Adventure 2: Battle

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Title Screen

Sonic Adventure 2: Battle

Developer: Sonic Team USA
Publisher: Sega
Platform: GameCube
Released in JP: December 20, 2001
Released in US: February 11, 2002
Released in EU: May 3, 2002


AreasIcon.png This game has unused areas.
MinigameIcon.png This game has unused modes / minigames.
GraphicsIcon.png This game has unused graphics.
DebugIcon.png This game has debugging material.


Sonic Adventure 2: Battle was the first Sonic game for the GameCube, as well as the first official Sonic game on a Nintendo console. A port of Sonic Adventure 2, it stayed true to its predecessor while providing new features such as two-player mode and, for the most part, upgraded graphics. One thing it didn't fix was the cut-off dialogue.

This page lists unused content exclusive to (or first appeared in) the Battle version. For content that appeared in the original game, see Sonic Adventure 2 (Dreamcast).

Sub-Pages

SonicAdventure2 DiffScreen.png
Changes from the Dreamcast Version
Computer screens can be inconsistent.

Test Level

Using the (NTSC) Action Replay code 80U8-7RHQ-W728R H2E9-MAE2-U5PEE, one can access a test level. It contains several features including slope tests, pits, doorway/roll tests, an interactive test object, and a grinding rail.

However, there is a way to access this level in-game without any hacking as well, as can be seen in this video.

Debug Mode

SA2B Debug 1.png

The (NTSC) Action Replay code 9E7F-943M-6ACEJ QTG9-MTTU-ABNMK lets you access a debug mode that, when triggered, displays debug info on the bottom portion of the screen.

Leftover Menus

A number of menus from the Dreamcast version of the game are inaccessible in this version. Despite being hidden, the menus are still functional and can be accessed using cheats.

Original 2 Player Mode

The 2 Player mode was revamped heavily for Sonic Adventure 2: Battle, but the 2 Player menus from the original version of the game still exist and are actually functional with the exception of some graphical bugs (every match appears to be Shadow vs. Eggman) and lacking alternate costumes.

TV Settings

The TV Settings menu was used to switch between 50Hz and 60Hz in the Dreamcast version. While the menu itself works, selecting either option doesn't actually affect the game. Furthermore, The TV Settings menu uses the theme selection icon in the options menu instead of its regular one.

Playable Super Sonic and Super Shadow in 2P Mode

SonicAdventure2Battle SuperForms2P.png

At some point during development, Sonic and Shadow in their super forms were planned to be be playable in 2 Player mode, accessed in the same way as their alternate costumes. Both super forms can both be found in the 2 Player's character select menu with cheats. However, they're incomplete - choosing either them will just result in regular Sonic or Shadow appearing once the match starts.

Why Sega...

There are lines of text related to the two summarising their abilities (the same as every other 2P character) that aren't displayed even when they're selected in the 2P menu.

SUPER SONIC
Powered by the 
7 Chaos Emeralds.
Amazing speed and moves,
but dies if rings are lost.
SUPER SHADOW
Powered by the 
7 Chaos Emeralds.
Amazing speed and moves,
but dies if rings are lost.

Also hidden in the game is the supposed method of unlocking them - clearing Green Hill with an A Rank.

Congratulations!
You've cleared Green Hill with Rank A.
Strongest characters are now available 
to use in Sonic and Shadow 2P versus mode.

In the final game, completing Green Hill with an A rank doesn't give you anything and the two can't be unlocked in any way.

Cosmic Wall Oddity

For whatever reason, most of the objects and some of the geometry for Cosmic Wall are loaded in the stage's two-player version, which ordinarily consists of one platform with three tiers. It is ordinarily never seen, but can be reached with the use of moon-jump codes.