Part 16

From the yard, climb stairs and follow the path to find the Feather on a pedestal. Collecting it spawns Harpies and Skeletons. Take a door in the corner.

Return to the courtyard and take the previously locked door. Analyze the center door, then take the west path upward. Stick to narrow corridors to find a Gold Ankh.

Return to the first room and enter the center door. Fall into the spiky pit once to find a secret area with armor and ammo. Fall again to die.

Cross the spiky pit and enter the next door. An obelisk rises; kill the enemies and go to the opposite side to get the ancient papyrus. Enter the ammunition depot.

In the next room, collect four Gold Ankhs that appear one at a time and return them to pedestals in the center. Enemies like Arachnoids, Skeletons, Reptilioids, Bulls, and Bio-Mechanoids will spawn with each Ankh placed. Use the Rocket Launcher and Minigun.

Once all Ankhs are placed, the door opens. Go straight for the next level or take a left for the Sacred Yards secret level.

Sacred Yards (Secret Level): Grab the Backpack and proceed. You'll face Bio-Mechanoids, frogs, Skeletons, Harpies, and invisible Gnaars.

In the next room, deal with Arachnoids, Bio-Mechanoids, and invisible Gnaars. Go through the water and a tube, then up a ramp.

In the room with barred doors, press buttons on four statues to open the way.

In the puzzle corridor, analyze the center object. Go left for the first puzzle: press three buttons on the ceiling (you'll flip upside down). Grab the Gold Sphinx.

Go to the other puzzle room. Press the wall button, then the floor button, and repeat. Swim to the northwest platform, grab the second Gold Sphinx, and deal with two spawning Reptilioids.

Return to the central room. The center object opens, and you drop in.

The Great Pyramid (Final Level): Proceed to the main corridor with two pyramids and three pedestals offering regenerating backpack and health.

Prepare for enemy waves: Wave One (~130 Kleer Skeletons), Wave Two (~100 Bulls), Wave Three (~70 Bio-Mechanoids), Wave Four (~30 Skeletons). Use Rocket Launcher, Cannon, Minigun, and Lasergun.

After clearing waves, go through the opened door.

Enemies appear on the path to the pyramid top. Use Cannon for Bulls, Minigun/Lasergun for others, and Rocket Launcher for Bio-Mechanoids.

Reach the pyramid top and fire your Cannon at Ugh-Zan III. Switch to Lasergun, Minigun, or Rocket Launcher if Cannonballs run out. Sidestep his blue lasers.

Once Ugh-Zan III's health is low, enter the pyramid.