AMNA-AA6T
Infinite energy (invincible).
A8XT-AAG6
Start with 7 energy balls (only works on the "Cool"
difficulty setting).
BLXT-AAG6
Start with 10 energy balls (only works on the "Cool"
difficulty setting).
F4ZT-AA4T
Infinite time.
C5NT-AA5L
Infinite lives.
AX1T-AA6N
Multi-jump. Keep rapidly tapping the jump button to
jump as high as you want.