press up to use your two power ups. the first power up is used to hover in mid-air. the second erases ghosts and M marked things. there are 3 worlds in this game, and 11 shines. yes, it is possible to beat this game. in fact, it's pretty easy. also press z to jump and left or right to move. when you're up in the air, press down to spin. use the spin on switches with exclamation points on them.