You are the wizard, and you have to fight off or avoid all the enemies who come at you. Use arrow keys to move, and press space to fire a spell attack. Use s to teleport to a random location on the stage. Different enemies give different amounts of EXP which is used to upgrade your character. Some enemies give more EXP as they get stronger. You can get many things from levelling up. You can move faster, or your attack spell may upgrade (it will be a different color). At 50 EXP, you learn a heal spell, giving +1 lives. Press W to use it.