Cheats all kinds

Type: JJMorph to morph from Jazz, Spazz, Frog, Bird, Jazz
JJShield will give you shield for 40 seconds type it again it will upgrade it 4 times
JJAmmo gives 99 ammo and all guns
JJFly helicopter ears type again for flying board
JJGod God mode

Cheats

Type in the game:

jjcoins for extra coins
jjnowall for noclip mode