Unlock All Songs
Quickly press Red, Yellow, Blue, Red, Red, Blue, Blue, Red, Yellow, Blue at the title screen when "Press Start" appears. Enabling this code will disable game saves.
Perfect Singer Score:
To get a perfect score on the singers part all you do is hold the MIC up to the speakers just right and leave it there. You know how there are backup singing the song with you? It will hear the backup singers and play their voices.
(supplied by: GodofGames)
