Aqua Slug is giant, mutated sea slug. It is unknown what is the cause of his mutation. On him is a small face with numerous eyes. He makes his first appearance in King of the Monsters 2. He is the fifth of Famardy's minions the monsters face.He was live in underwater and covered with big stone
- Freeze - Aqua Slug can temporarily freeze his opponents in ice.
- Create tornado - Aqua Slug can create small tornadoes to disorient his opponents.
- Red bubble- Aqua slug can shoot 3 red bubbles.This power can let the players become fattend and inflated.
Aqua Slug can freeze his opponents if he wins the throw contest with them. He spouts three red bubbles that temporarily inflate a monster. He also release a small tornado that knocks a monsters off their feet. Aqua Slug closes himself inside of his shell in order to dash at the opponent and knock them down.
Players can throw small ships that appear around his stage. These ships can give a player breathing room to charge up their power bar or to use another method of attack.