Game saves:


Collect the letters "K", "O", "N",

and "G" all one the same level, then complete the level.

The game is also saved after beating a Boss. 



Unlimited lives:


Enter the bonus stage just half-way through level 8 (Gangplank

Galleon). Collect the extra life and leave the stage. Re-enter

the stage to collect another extra life. Repeat this procedure

to collect an unlimited amount of lives.



Walk on hands:


Stand still, then hold Down

and press A. Press A while walking on your hands

to perform a super jump.


Although posted as a valid code

on other web sites, it does not function in the retail version

of the game.