Hold L + R + Down + Y for three seconds to toggle the following cheats on and off:

God mode

Press R(3), L(3), R, L, Y, R.

Auto-win

Press R(2), L(3), R(2), Y(3).

Level select

Press Y(3), L, R, L(2), R, L, R(2), L, R, L(2), R, L, R, L(2), R, L(2), R, L, R(2), Y(3) to unlock the "Bling" profile with all levels unlocked.

Fog of war

Press R, L, R(2), L(2), Y(2), L, R.

Decrease speed by 50%

Press L(5), Y(4), R.

Increase speed by 200%

Press R(5), L, Y, R(3).

Additional 100 Gold

Press L, R(4), L, Y, L(3).

Additional 100 souls

Press R, L(4), R, Y, R(3).

1000 Gold and Souls

Press R(2), L, R(2), Y(3), L(2).