Summary: My only complaint is that there is a bit of emulator lag, even though I'm playing on a 3DS XL. Sonic 1 is the worst offender, but the others seem to have occasional slowdowns too. The Sonic 3 3D sphere stages are very jittery.
Summary: I purchased this game for my 5 year old son. He loves this game. It has some of the games I remember playing myself as a child. Some levels are easy and some are challenging for him. In all this was a great purchase for him.
Summary: to start off the reviews saying that the game is a demo version are wrong, like the sonic games on the genisis console you have to hit start to select things in the menu not the a button. this game is a fully functional port of the games and has the knuckles character available. pros.