Aqua

Aqua is a Hero in Worlds Collide's story.

Origin
Aqua is a kind Hero built in Dimension 117, and was close friends with Burst. The two were survivors of Hive's attack, and turned against the Hero Factory, joining the side of Noctis. Eventually, they are redeemed.

Worlds Collide
Aqua's life took a turn when Stealthion knocked him off his ship, causing him to get amnesia. Then, Shau manipulated the amnesiac into serving him. He is often shown to be quite gullible, never questioning his (supposed) former employment under Shau. Cloak had an encounter with Aqua and his pet ice dragon Glacies in an underwater arena on Scylla. Cloak was able to figure out the Hero's past, and upon bringing this to his attention, won by forfeit. Aqua now seeks to rebuild his life.