Dexter's Laboratory: Deesaster Strikes! Cheats - GBA

Invincibility
Pause game play, then press [L]x3, [R]x5, [L], [R]x4, [L]x3.

Level skip
Pause game play, then press [L]x3, [R]x2, [L], [R]x3, [L], [R], [L], [R]x3, [L].

Extra life
Pause game play, then press [L]x2, [R]x2, [L], [R], [L]x3, [R], [L]x2, [R]x2, [L]x2. Repeat to get more lives for a maximum of nine.

Extra ray gun ammunition
Pause game play, then press [L], [R]x3, [L]x2, [R]x2, [L]x4, [R], [L]x2, [R].

Faster movement
Pause game play, then press [L], [R]x4, [L], [R], [L], [R]x2, [L]x2, [R], [L], [R]x2.

Less damage
Pause game play, then press [L], [R]x4, [L]x3, [R], [L]x6, [R].

Higher jumps
Pause game play, then press [L]x2, [R]x6, [L]x2, [R]x2, [L]x3, [R].

Faster opponents
Pause game play, then press [L], [R]x5, [L]x4, [R]x4, [L]x2.

Slower opponents
Pause game play, then press [L]x2, [R]x3, [L], [R]x3, [L]x2, [R]x2, [L]x2, [R].

Stronger opponents
Pause game play, then press [L]x2, [R]x4, [L], [R]x3, [L]x6.

Stronger Dexter
Pause game play, then press [L]x2, [R]x3, [L]x2, [R], [L]x2, [R]x2, [L], [R], [L], [R]. Dexter can destroy robots easier by punching or kicking for a limited amount of time.

Reverse controls
Pause game play, then press [L], [R]x6, [L], [R], [L]x2, [R]x2, [L]x3.

Glitch: Over 200 health
Go to the level with things on a conveyer belt that smash you. It is somewhere in the area that requires 15 DeeDees to get in. Get smashed until you die. Before the scene of Dexter with stars over his head, pause game play. This should be done when Dexter receives the last bit of damage to kill him. If done correctly, your health should be over 200. However, once you return to the game you will still lose a life.