While playing, press R2, R2, L1, R2, LEFT, DOWN, RIGHT, UP, LEFT, DOWN, RIGHT, UP.

On the second level, right after burning the bridge, continue to the town. Kill all the guards up to the priest. Then return to the entrance to the town, where the bridge was, and to your right there is a way around. Get the gold, follow the path to where the bridge was, then use your dragon summoning spell to kill the reinforcements. It will take a few trys, but if you have the Crown of the Crusader in the first level, you should be able to run back and forth between there and the priest until you get all the experience you need. The reinforcements will always reappear.

To restore health, press R2, R2, L1, R1, LEFT, DOWN, RIGHT, UP, LEFT, DOWN, RIGHT, UP during gameplay.