Sonic Adventure [Beta / Unused Stuff]

Sonic Adventure was developed by Sonic Team and released in 1998 in Japan by Sega for the Dreamcast and is the first game in the Sonic Adventure series. One of its development titles was Sonic RPG, (although the final game was an adventure game not a standard RPG). In the game you were supposed to be able to turn super sonic at any time: the proof of this comes in the form of a Voice clip, of Tikal telling how how to become super sonic. A Dragon boss was removed from the game before the final version, but it could still be found in the prototype of Sonic Adventure DX that was leaked online. You can find more info on Sonic Cult!

Thanks to FullMetalMC & BowserEnemy for some of these images!

SEGA Confidential images from SEGAKatana.com

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1. Sonic Adventure 2 [Beta - Dreamcast]
2. Sonic The Hedgehog [MD/G - Beta / Concept]
3. Sonic 3 & Knuckles [MD/G - Beta / Unused Levels]
4. Sonic CD [Mega CD - Beta / Unused Stuff]
5. Sonic Rush [DS - Beta / Unused Stuff]