Unlock Cheat Menu:

Enter these on the world map. A and B mean a short button tap. =A= or =B= is a held down push (half a second or so)

Code - Effect

A A B =B= =A= =A= B =B= =A= A =B= =B= =B= =A= =A= =A= =B= B B B - Unlock debug menu/all spells