Downloads

Downloads

Sonic 2 "Simon Wai" Prototype (Also known as the Sonic 2 Beta)

Discovery Date: December 1998

Found by: Simon Wai

Download: here ^(info) (625 kB)

The first early prototype version of Sonic the Hedgehog 2 to be found, and has been the backbone of this site for years. This highly unfinished, and barely playable game requires a Sega Mega Drive/Genesis emulator to run it. Press A+Start to enter level select. You will need other cheat codes like debug mode to fully explore the zones, so read it up while you're downloading.

Sonic 2 "Nick Arcade" Prototype

Discovery Date: 7th November 2006

Found by: drx

Download: here ^(info) (519 kB)

After almost 8 years of only having Simon Wai's beta, drx found the community another Sonic the Hedgehog 2 prototype. Though it's not fully confirmed, this build appears to be identical to the version featured in the show Nick Arcade. It's even earlier than Simon Wai's prototype, featuring only 5 playable zones. Press Up, Down, Down, Down, Down, Up, A+Start to enter level select.

The Sonic 2 "Betas"

Discovery Date: 23rd February 2008

Found by:drx

Downloads:

• Beta 4 ^(info) (713 kB)
• Beta 5 ^(info) (727 kB)
• Beta 6-1 ^(info) (730 kB)
• Beta 6-2 ^(info) (730 kB)
• Beta 7 ^(info) (730 kB)
• Beta 8 ^(info) (732 kB)

On February 23rd 2008, drx released six more betas to the community. These are much later prototypes than the Nick Arcade, Simon Wai and CENSOR builds, and cover the last minute changes leading up to the final release. Betas 6-1 and 6-2 are identical except for a few bytes in the header.

Sonic 2 "CENSOR" Prototype

Discovery Date: February 14th, 2019

Found by:drx and evilhamwizard

Downloads:

• Original ^(info) (704 kB)
• Restoration Hack ^(info) (701 kB)

Initially dumped by CENSOR just a few weeks before the final release, before being forgotten in-favor of another dump by MAGICAL. Was rediscovered by drx and evilhamwizard, making it the latest build dumped.