Sonic’s farewell to the world of 8-bit gaming was a surprisingly ambitious one, with Aspect choosing to employ pre-rendered sprites to represent Sonic and Knuckles. Unfortunately, to make that choice worthwhile, those sprites have to be quite large and you don’t get to see much of the stage at a time. This makes it tough to avoid obstacles, which may be why hits cost you just ten rings rather than all of them as is traditional. The Brazilonly Master System version is now a real rarity.