Level 11. Sumo Sky Palace

Immediately engage the Baby Ripper, Guardian, and Brown Ninja. The GOLD KEY is visible in the left window, and the silver key in the right.

Defeat the initial enemies and proceed forward. You will encounter the gold key door but do not have the key yet. An opening with items is to the right of this door; check the left side as well.

Go to the door opposite the gold key door and advance. A ninja will be shooting from the far side; eliminate all enemies.

Reach the far end of the area to find a switch. Activating this switch lowers the GOLD KEY, which is located behind you on the far side, granting access.

Carefully walk across the ledges without falling to retrieve the GOLD KEY. You will know the correct path on your return. Pick up the smoke bomb and the GOLD KEY.

Return to the gold key door and use the GOLD KEY to open it.

Proceed through the door to face a Serpent and a Ripper. Defeat both enemies.

Go to the other side of the room, choosing either the left or right path. First, take the left path and eliminate the enemies.

Jump up the crates. The door ahead is locked. On the other side, there are two switches. Activate the RIGHT switch.

Jump back down and take the right path. Jump up the crates again. Activate BOTH switches here. The door will open.

Go through the door to reach the second floor.

Circulate the area to clearly see the RED KEY in the middle, along with a grenade launcher. Jump to acquire it.

Return to the first floor and use the RED KEY on the red key door, located to the west of the gold key door.

Enter through the red key door and navigate around the spinning slicing mechanism using safe spots.

On the other side, you will find another spinning slicing mechanism. Before proceeding, check the chair for ammo and eliminate the Ninja shooting at you.

Go to where the ninja was and find a switch. This switch allows you to bypass the other spinning slicing mechanism.

Defeat any remaining enemies and check the middle bookcase for a rail gun.

Proceed through the door ahead, defeating the Coolie and the ninja inside.

Follow the path down the stairs into an area with several Ripper and Coolie Ghosts. Eliminate them all.

The door ahead is locked. Look for bars in the room, open them, and hit the switch inside.

The door will open; rush inside quickly before it closes.

Go down the ladder to return to the exterior area, near your starting point.

Go up, turn left, jump through, turn right, go up, and carefully jump to the ladder and climb up.

Consider saving your game here.

Once up the ladder, you will encounter a Guardian and firetraps.

Head down and find a small medikit. Jump onto this platform and continue jumping up the platforms until you reach the other side where the SILVER KEY is located.

Pick up the SILVER KEY and the missile launcher. Return to the firetrap room.

Use the SILVER KEY on the silver key door, which is nearby, and proceed through.

Navigate through a moving mechanism with spikes.

Open the door on the other side and eliminate any ninjas shooting at you.

You will see columns moving up and down. Jump from one column to the next to reach the other side. Consider saving your game here.

Upon reaching the other side, you will see a picture of an old woman. Open it to reveal a sign that says, "Beware!".

As you approach the lever, missiles will fire from the two corners of the room. Move slowly forward and hit the lever from the furthest possible distance.

After hitting the switch, return to the middle column. A teleporter will appear.

Enter the teleporter to initiate a fight with the SUMO. Pick up ammo from the corners if needed.

Use the corners for cover (press the cover button to crouch behind walls or objects) during the fight.

Only shoot the Sumo when you have a clear shot.

Be aware of his magic mapalm attacks and movements; dodge or take cover. He has no backup.

The Sumo has Accursed Heads around him that use Gas Bombs; watch out for them.

After defeating the Sumo, a cinematic plays, ending the level.