Play as Super Shadow and hit him with the Chaos Spear(s). First, try to avoid the meteors that shoot lasers at you, or destroy them if desired. Charge your Chaos Spear with Square and blast Devil Doom in the eye. Devil Doom's third eye will go to the other head. Go to the other side and charge your Chaos Spear. Blast him in the eye again. Note: Make sure to shoot the balloons to get rings if you are running low. When you blast him in the eye immediately, go to the other side, and charge your blast . When Devil Doom's third eye gets to the other side of the head, blast him. Go to the other side and blast him, then go to the other side blast him and repeat.