Sonic Advance

Sonic Advance
Developers: Sonic Team, Dimps Publishers: Sega (JP/EU), THQ (US) Platform: Game Boy Advance Released in JP: December 22, 2001 Released in US: February 4, 2002 Released in EU: March 23, 2002 This game has hidden development-related text. This game has unused music. This game has debugging material. This game has revisional differences. This game has a prototype article This game has a prerelease article

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Sonic Advance is, as you may have guessed, the first game in the series of the same name.

Sub-Pages

Prototype Info

Prerelease Info

Build Dates

Present at 0x7F8F4C (Japan v1.0), 0x7F8F48 (US), 0x7FF02C (Europe), and 0x7F9078 (Japan v1.1):

Japan v1.0	0.69Wed Oct 31 18:01:36 2001
US	0.69Wed Oct 31 18:32:29 2001
Europe	0.71Wed Nov 21 13:22:30 2001
Japan v1.1	0.72Thu Dec 20 16:05:10 2001

Unused Graphics

Artwork	Description
	Unused frames of all the characters, notably planned to be used when gravity gets reversed on both Egg Rocket and Cosmic Angel.
	Unused frames of Tails during X-Zone's real ending, as he sees Sonic transforming into Super to pursue Eggman.
	"To be continued". Correct palette(s) still to be found.

(Source: AsuharaMoon)

Unused Music

Invincibility

An alternate invincibility tune, which was later used in Sonic Advance 2 and Sonic Advance 3.

Debug Save

Not having an SRAM chip on the cartridge will unlock everything in the game. This is also the case for the other Sonic Advance games.

Revisional Differences

The original releases in all regions have a rather severe bug:

An address keeps track of the total amount of rings collected in the main game. When accessing the Tiny Chao Garden, the value in the address is read and stored by the Tiny Chao Garden to keep track of the ring count. When deleting the save data, the value gets erased.

As a result, rings collected in the main game will no longer transfer to the Tiny Chao Garden until the total amount of rings collected in the main game matches that of the value stored by the Tiny Chao Garden prior to the save being deleted. This was fixed in the various double pack releases containing Sonic Advance and the Japan only v1.1 by not erasing the ring total when deleting the save data.

The original US and Japanese versions have English and Japanese language selection. The double pack releases added Spanish, French, and German from the European version.