Cheat Codes
     Pause  the  game, hold [Z], and move the Nunchuk control stick in 
the  following  directions.  If  entered  correctly,  you  will hear a 
distinct  sound.  Note  that you must re-enter all codes upon entering 
new levels.

All Elemental Upgrades: [Left], [up], [Down], [Up], [Right]

Infinite Health: [Right], [Right], [Down], [Down], [Left]

Infinite Mana: [Up], [Right], [Up], [Left], [Down]

Max XP: [Up], [Left], [Left], [Down], [Up]