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Nintendo DS - Tetris cheats

Unlock Music Tracks in Sound Test:
Finish the following tasks in Standard Marathon mode 

Basement Tetris -  Play until level 3 
Mario Tetris 3 -  Play until level 4
Bowser Battle -  Play until level 10
Tetris DK  -  Play until level 13
Balloon Tetris -  Play until level 14
Tetris Climber  -  Play until level 15
Rushed Tetris -  Play until level 16
Ancient Tetris -  Play until level 19
CongraTetris -  Finish Standard Marathon mode

Unlock Standard Endless option
Reach more than 200 lines to finish Standard mode.