S.I.M.I.S.is not one game but a collection of games. The name S.I.M.I.S. is actually an acronym of those games, Snakebyte, Invaders, Mines, Isolation, and Specials. Separately each game might not be worth buying but collectively, they make for one killer cart. And don't give Schick all the credit for this game, as Matthias Domin also contributed Snakebyte and the Marble Madness style game.