Sonic CD has always been one of my favorites. I play the Mega CD version because it is the best of any version of the game, my opinion! I noticed that the special stage game-play is different when it comes to comparing the game with other versions of Sonic CD. I cannot and I repeat, CANNOT eliminate the UFOs in the Mega CD special stages as effectively as I can in the US (Sega CD and PC) versions and Gems Collection for Gamecube. In all stages (1-7) when trying to smash the UFOs, I come very close to destroying a UFO, to the point where it SHOULD be destroyed, the damn thing somehow slips right under me! This is frustrating. Am I the only one who notices this? .. (unsuccessful attempt) Keep in mind, Sonic CD for Mega CD is when this happens!