Sega announced today on their blog that if you pre-order Castle of Illusion’s remake between August 20 and September 2, you’ll receive the original Sega Genesis version of the game. Also, you won’t have to wait until the remake comes out to play the original – it will be available to download immediately after pre-ordering. You’ll also receive an exclusive pre-order dynamic theme and three avatars. The game launches on September 3 on PSN and September 4 on PC and XBLA. Sadly, there’s no word on those versions including the original game as a pre-order bonus, so it would appear that the PS3 version would be the version to get if you want the definitive experience.