Itadaki Street DS Cheats...
BGM Collection
Clear all 10 stages. BGM option will be unlocked under Collection.
Birdo
Defeat him in Luigi's Stage Level 1.
Donkey Kong
Defeat him in Plob's Stage Level 1.
Dragon Lord
Defeat Dragon Lord in stage 9.
Koopa
Defeat Koopa in final stage.
Luigi
Defeat him in Yoshi's Stage.
Plob
Defeat him in Slime's Stage.
Waluigi
Defeat him in Wario's Stage Level 2.
Wario
Defeat him in Luigi's Stage Level 2.