A long while ago, around the Sonic CD days, I heard that Amy was a squirrel. Now I have poeple telling me she is a hedgehog in the newer Sonic games (SA:DX, SA2:B). Which is it?
Amy Rose has always been a hedgehog. Princess Sally (of SatAM and Archie's Sonic comic) is the chipmunk/squirrel. When Sonic CD first came out, they briefly refered to Amy as "Sally" to draw in more fans who were more familiar with the cartoons and comics. However, they've always been completely seperate characters.

~ Crazy C Lea