The Pus Tank EX is maroon in color, like a Pus Tank, but is more yellow. It is bigger than the Pus Tank and fires a big orange-yellow blast, but if you get close to it, it will claw at you. This makes it a dangerous enemy, with a ranged and melee atack. The hat of this Pus Tank EX is similar to the Pus Titan's but is black with red stripes. It yields 20 Xplodium/Experience when killed, and first appears on Wave 40 of a revolution.