Instructions
Run toward the Great Pyramid, and away from Ugh-Zan III, once the fight begins. Do not stop running, or Ugh-Zan III will catch you and defeat you. The Great Pyramid is the large pyramid in the opposite direction of Ugh-Zan III.
Use the cannon to destroy all enemies in your path as you run.
Grab any health or ammunition items you encounter along the way.
Climb the steps of the Great Pyramid until you reach the base of the pyramid. Turn around to face Ugh-Zan III, and the battle will begin.
Avoid the black-and-red fireballs Ugh-Zan III throws at you.
Shoot the giant orange fireball Ugh-Zan III throws at you. This fireball is a homing fireball, and will follow you around until it hits you or you destroy it.
Avoid the blue lasers Ugh-Zan III shoots at your from his lower right hand.
Shoot Ugh-Zan III anywhere on his body or face to cause damage to him. Use your strongest weapons, like the cannon, to cause as much damage to him as possible when you hit him.
Destroy any creatures Ugh-Zan III spawns to fight you. If you do not destroy these creatures as soon as they appear, you will quickly become overwhelmed by them.
Enter the Great Pyramid when the large doors at the front of the pyramid open. They will open when Ugh-Zan III's health, located at the top of the screen, is 50 percent depleted. After the movie finishes playing that triggers when you enter the pyramid, your character will appear at the top of the pyramid.
Use the ramps scattered around the arena to launch into the air and fall through a ring, activating it. Do this with all four ramps and rings located around the arena. Once all four rings have been activated, Ugh-Zan III is hit with a great blast of light, which stuns him and drains his health.
Shoot Ugh-Zan III with your cannon while he is stunned. Once his life bar is completely empty, Ugh-Zan III is defeated.