This article pertains to the beta elements of Sonic Advance 2.
Unused graphics[]
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Leftover sprites of Sonic transforming into Super Sonic from Sonic Advance. |
| Unused turning sprites of the boss from Ice Paradise Zone. | |
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An unused drum style gimmick, which appears that it was meant to be used in Music Plant Zone. |
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An older copyright image from the original Sonic Advance. |
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"TGS ver." This is a leftover from the Tokyo Game Show version. |
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The original, down-scrolling background for title screen. |
Unused Act[]
In the main game, there are always three acts: Two main regular acts (Acts 1 and 2) and a boss (Act 3). However, for all zones, there is also another act (Act 4) that was planned was as well and all instances of this use the same foreground and background. These being a single platform with a roof of spikes and a dark blue background.
Unused Feature[]
In Sonic Advance, the game had an option to enable team play when playing in multiplayer modes. This feature was scrapped in this game, but the coding for it still remains in the game's files and can be enabled via hacking. This feature is well completed and teammates can interact with each other. Code for team-specific character actions is left over from the previous game, though partially functional.
- Sonic's team action (boosting teammates with his Spin Dash) works as intended.
- Tails' and Knuckles' team actions (carrying teammates while flying/gliding) will cause their teammate to be stuck in the air with no way to control them.
- Amy's team action (catapulting teammates upward with her Piko Piko Hammer) doesn't function at all.
- Cream has no team action coded for her.
Graphical glitches will also occur on the results screen for players from one team who win, but not for players from the other team who lost.
Sonic Mega Collection trailer[]
Sonic Advance 2 - Game Boy Advance - Retro Commercial - Trailer (2003 Sega of Japan)
The trai. In this game, the idea was dropped yet the coding for it still exists within the game's files and can be enabled via hacking.ler.
Upon the release of Sonic Mega Collection in late 2002, a short trailer for Sonic Advance 2 were found in the game's extras menu. The footage is from an early version of the game, which holds a few differences.
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 The game has a simpler title screen here, with background always scrolling downwards.  An early character selection used character sprites from Sonic Advance and lacked the diagonal "SA2" text in the background.  An early level select. The lake in Leaf Forest is not present, the piece of Music Plant's island is missing and Chaos Emerald counter is not featured. |
Early build[]
Leaf Forest[]
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![A screenshot from Sonic Team's website,[1] this image showed Cream for the first time. Notice Amy's life has corrupt color palette. Cheese is also not there, and the four characters can only appear on screen in multiplayer mode. Multiple websites would replace the screenshot with one featuring a fixed life icon.](/wiki/File:Gd-sadv2-4.png "Gd-sadv2-4.png (6 KB)") A screenshot from Sonic Team's website,[1] this image showed Cream for the first time. Notice Amy's life has corrupt color palette. Cheese is also not there, and the four characters can only appear on screen in multiplayer mode. Multiple websites would replace the screenshot with one featuring a fixed life icon.  The sky in Leaf Forest is darker and less opaque than in the final game.  The Leaf Forest's sky is still in a darker color. |
References[]
- ↑ Sonic Advance 2 - Prototype Screenshots. Sonic CulT. Retrieved on 7 January 2016.