Shellus Gigantus

Shellus Gigantus is the post-final boss of Demon Theif. When Octometaknight gets sucked up by the Brawler's Shell after Crazen defeats Big Hands, this guy forms. In his first form, he looks exactly like a Zombie Sheller, but more powerful and with extra attacks. His second form is much larger; the size of the screen with even more powerful strikes. with his extendable shell, Shellus Gigantus can reach large and tiny widths. In his third form, Shellus takes the form of a UFO, flying around and firing Zombie Shellers at you, and powerful laser strikes aswell. The reason of its name is that the "Shellus" part is for showing hes an evolved Zombie Sheller. Its "Gigantus" is because Shellus is giagantic and to show its superiority from the other Zombie Shellers.

Combat
This guy is tough, so be tougher. Fused characters are reccomended. In it's first form, attack from behind to distract him, then fire a powerful ranged attack into the opening of his shell. In his second form, attacks are useless - kill his Zombie Shellers and knock them into the opening. In his third form, strike from above, strike below, and knock a Zombie Sheller at it. No other way works. That makes it hard.