Mission 100

There are spawners, usually cloaked spread out along the entire map. It is easier to find them in Blue mode. The one at the bottom left is easiest to miss. There is a factory that produces the rather annoying yellow kamikaze drones - you should kill it pretty quickly. It is also best to destroy the flea vats and their contents before you have to deal with the Elite Overlord.

The Gate itself is phased and can only be killed in Blue mode.

The entire level is trapped and these traps activate during your fight with the Elite Overlord. These traps will only activate if you are in their designated areas.
 * 1) The shaft on the left hand side will spawn swarms of enhanced fleas.
 * 2) The Gate room has a false floor. If you step on it then it will open up into a room surrounded by a purple shield. Anomalies will be summoned to try and trap you in here. This is a good room to heal in during Reverse Blue Mode.
 * 3) The Factory room will fill with deadly purple energy while you are inside it.
 * 4) The Flea Vat room will cause anomalies to swarm the area.
 * 5) Moving block traps on the right side of the level will try to force you into the red beam if you stand on them
 * 6) The Platform room will cause bombers to spawn.