Is none a valid answer? You can play flash tetris on the internet aaannnnddd Mario hoops is a short game without much to do except play Basket Ball the WRONG way! I suggest: Metroid, FF3, Castlevania, Star Fox, New Super Mario bros and anything fun related. To answer your question the way you wanted it: Hoops. Tetris DS is like any other Tetris(seriously effects do nothing), Hoops is definitely one of a kind!