Orengefox

Prototype builds releases

	Date	System
Sonic the Hedgehog 2 (Dec 5, 1991 Autodemo prototype)	5 December 1991	Game Gear
Clockwork Knight - Pepperouchau's Adventure Sample (Nov 14, 1994 build)	14 November 1994	Sega Saturn
Sonic Labyrinth (May 25, 1995 prototype)	25 May 1995	Game Gear
Tails Adventure (Review Prototype)	21 July 1995	Game Gear
Sonic Adventure AutoDemo (Oct 16, 1998 prototype)	16 October 1998	Dreamcast
Dreamcast Promotion Disk (Oct 22, 1998 build)	22 October 1998	Dreamcast
Sonic Adventure Taikenban (Mar 2, 1999 build)	2 March 1999	Dreamcast
Sonic Adventure 2 Shop Trial (May 3, 2001 prototype)	3 May 2001	Dreamcast
Mega Man Battle Network 2 (Oct 16, 2001 prototype - debug)	16 October 2001	Game Boy Advance
Sonic Advance Review (Oct 31, 2001 prototype)	31 October 2001	Game Boy Advance
Sonic Heroes (Nov 24, 2003 prototype)	24 November 2003	Xbox
Sega Superstars Demo (Aug 30, 2004 prototype)	30 August 2004	PlayStation 2
Sonic Riders Trial (Feb 27, 2006 prototype)	27 February 2006	PlayStation 2
Sonic Rivals 2 (Oct 22, 2007 prototype)	22 October 2007	PlayStation Portable