Ty The Tasmanian Tiger

During the game, press L, R, L, R, Y, Y, X, B, B, X, Z, Z. This shows all items with a nasty glow.

During the game, enter L, R, L, R, Y, Y, B, B, Y, B.

Press L, R, L, R, Y, Y, Y, B, Y, B during the game to get some technorangs.

During the main menu, press L, R, L, R, Y, Y, Y, Y, X, X.

In the game, do not press pause, press L, R, L, R, Y, Y, A, A, Z, B, Z, B. It will take a while to get it correct, but when it goes through you should here a chime.

If you're low on health, dive into the water and resurface--you'll emerge with full health.

Beat the game and collect all Opals, Eggs and Cogs to unlock a bonus level and second ending to the game.

At the main menu, press L, R, L, R, Y, Y, A, A, Z, B, Z, B.