Dave Mirra Freestyle BMX [cheats] UNLOCK ALL LEVELS: After picking bike and rider go to the selection screen and press Left, Up, Right, Down, Left, Down, Right, Up, Left, Modifier Airs Button. UNLOCK ALL BIKES: At bike selection screen, press-up,left,up,down,up,right,left,right and Modifier Airs Button UNLOCK ALL STYLES: At The style selection screen and press left, up, right, down, left, down, right, up, left, Modifier Airs Button