God mode:
Hold L + R and press Right, Left, Right, Left, Up, Down, Up, Down during game play.

Immune to attacks:
Hold L + R and press Left, Right, Left, Right, Up, Down, Up, Down during game play.

Full health and mana:
Hold L + R and press Left(2), Right(2), Up, Down, Up, Down during game play.

Extra damage:
Hold L + R and press Up, Down, Up, Down, Left, Right, Left, Right during game play.

Extra silver and Adderstones:
Hold L + R and press Up(2), Down(2), Left, Right, Left, Right during game play.

Debug mode:
Hold L + R and press Right(2), Left(2), Up, Down, Up, Down during game play. This will unlock levels on the map, but you must travel on the map to go there. Hold White or Black and press Right to display the debug menu. To get to any level, choose the "Level select" option from the debug menu. This allows you to directly jump to any level, even the final ones.