Kim Possible: Kimmunicator Cheats

Unlimited lives:
Hold L + R and press Y(3), X while playing the game.

99 lives:
Hold L + R and press A(3), Y, X, Y, B, A while playing the game.

Extra life:
Hold L + R and press A(3), Y, X, Y while playing the game.

Full health:
Hold L + R and press A(3), Y while playing the game.

All gadgets:
Hold L + R and press Y(2), X, B, A, Y(2), A while playing the game.

All costumes:
Hold L + R and press B, A, X, Y, A, B while playing the game.

9,999 credits:
Hold L + R and press Y(2), X, B, A, Y while playing the game.

Invincibility:
Hold L + R and press Y(3), X, A, B while playing the game.

Level select:
Hold L + R and press X, Y, X, A, X, B while playing the game.

Bueno Nacho costume :
Have the Game Boy Advance game Kim Possible: Revenge Of Monkey Fist in the cartridge slot to unlock the Bueno Nacho costume.
User Cheat by samuraijack094

Commando costume :
Have the Game Boy Advance game Kim Possible 2: Drakken's Demise in the cartridge slot to unlock the Commando costume.

Super Suit costume :
Have the Game Boy Advance game Kim Possible 3: Team Possible in the cartridge slot to unlock the Super Suit costume.

Kim Possible Kimmunicator Official Website

Kim Possible Kimmunicator Review - GameZone

Kim Possible Kimmunicator Review - Worth Playing