On the Continue/Game Over screen, rapidly press START, and the number of Continues will go up to 9!
After using Game Cheat Mode, during a stage, hold SELECT and press B. Now, you have 99 of every weapon!
Aim your sling shot at its head and keep doing this until you have defeated it.
At the title screen press, L, Select, A, Select, R, A, L, Select.
To ger to the Lakamul Rain Forest Level at the title screen press A, L, A, R, A, L, Select, Select, Start.
After opening Game Cheat Mode and selecting a stage, hold SELECT and move with the cursor. You´ll notice that now, you can fly around and pass through obstacles, just like a ghost, as long as you hold SELECT!!
On the title screen, press: L, SELECT, A, SELECT, R, A, L, SELECT. Now, you can select stages by holding SELECT and scrolling with the L and R buttons!