Level 9. Monastery

Start the level and let the initial spinning slicing thing (a hazard that kills enemies) eliminate nearby ninjas. Finish off any survivors.

To your left, jump through a picture of two horsemen to find a grenade launcher.

Stay near the left wall and enter the first small space on the left.

Check the walls for an opening leading to a sewer area.

Go behind the water on the middle left to find the RED KEY.

Pick up the uzi clips and proceed into the tunnel.

Defeat the ripper and the ninja ahead.

Return to the room with the spinning slicing thing.

Locate the red key door next to the silver key door. Use the RED KEY on its door and proceed inside.

Eliminate all enemies in this area.

Before heading north, pick up items in the room.

Hit the gong to open four panels in each corner, revealing many items and ammo.

Head to the north end of the room and turn right. Open the large doors and go through.

Go downstairs, defeating the ripper and ninjas along the way.

Behind a statue, find a Riot Gun. Next to the left column is a Uzi, and next to the right column are two small medikits.

Go up the small stairs to the dojo room, collecting caltrops and shotgun shells.

Use the dojos to regain health and defeat the enemies present.

Behind the corner opposite where you entered, find an upstairs path (where a brown ninja was shooting from above).

Head left and through the door. Inside, behind a large column, find the SILVER KEY and some ninjas. Grab the SILVER KEY and the missile launcher behind it.

Return to the room with the gong and the four panels. The silver key door is opposite the bronze key door.

Use the SILVER KEY on its door and go through.

The GOLD KEY is located next to the first statue on the right. Pick up the GOLD KEY and defeat the ninjas.

Make your way back to the gold key door, which is near the spinning slicing thing, opposite the silver key door.

Use the GOLD KEY on the door and proceed quickly, as the slicing thing can catch up.

Go up the stairs, turn left, defeat the grey ninjas, go to the other end, and turn left to pick up the BRONZE KEY and a grenade launcher.

Return to the bronze key door, which is located behind the red key door (in the room where hitting the gong opened the four panels).

Use the BRONZE KEY on the door and go through.

Defeat the missile-launching ninjas, stock up on missiles, and collect the armor.

To the right of the right statue, find an opening. Enter it to find an Uzi.

Hit the end level switch to complete the level.