Culex

Culex appeared in 1996 video game called Super Mario RPG: Legend of the Seven Stars. Culex is an optional hidden boss who appears in Super Mario RPG: Legend of the Seven Stars. Culex is a being from a different dimension who desires to do battle with warriors from Mario's world. He appears to be a type of demon, having dark purple skin, red twisted horns and wings, a red mark along his torso, a jagged tail, and several crystals surrounding his waist. He also emanates what appears to be dark energy.

Alongside the Crystals, Culex is an even more powerful boss than the main story's antagonist, Smithy, as he has 4,096 HP, the second most of any encounter in the game (behind only Smithy's second phase). Culex, combined with the Crystals, has 12,396 HP, which exceeds both of Smithy's phases combined.