Homing Eggs
When Kazooie learns the hatch ability, go to the giant egg house and hatch the 2 secret eggs. Then you will be given a code that makes eggs that are fire home in on opponents. The code will be HOMINGEGGS but you can type it backwards instead (SGGEGNIMOH) to save you from hatching the secret eggs!
Invincibility
Enter cheatcode "HONEYKING".
Kazooie can go underwater
First, get the the backflip with kazooie in Grunty Industries. Then go to Jolly Rogerers Lagoon and run up to the tip of the lagoon without stoping and backflip (Z+A). Kazooie will be sinking down.
Note: When you hit the ocean floor, you will float back up.
Swim faster
Press A + B to swim faster in water.
Warning
If you are to use 3 cheats that help to unlock doors, or clear pathways, Gruntilda will delete your saved game data. Examples of such assistance codes include: CHEATGRUNTYWILLCRYNOWYOUVESMASHEDHEREYE and CHEATITSYOURLUCKYDAYASTHEICEBALLMELTSAWAY.