At the title screen pick ARCADE MODE. Select any play mode (easy, normal or hard). Now at the song selection press the analog pad in any direction then do the following to unlock the diffrent play modes: To unlock "Hidden" press U, D, U, D, U, D, U, D To unlock "Mirror" press L, R. L. R. L. R. L. R To unlock "Little" press L, D, R, D, L, D. R. D, U You can then toggle them on or off by pressing left or right.