The following are known Action Replay Codes for Catz 2 on Nintendo DS (DS).

These codes are for the European version of the game.

Game ID: YC8P-33F83AE6

Press Select For Max Cash (Slot 1)
94000130 fffb0000
12150a74 0000270f
d0000000 00000000

Press Select For Max Cash (Slot 2)
94000130 fffb0000
12150c54 0000270f
d0000000 00000000

Press Select For Max Cash (Slot 3)
94000130 fffb0000
12150e34 0000270f
d0000000 00000000