The Aqua-Blaster is a weapon used by Kalamarus in his battle with Max. It is connected to the submarine, the Man-Eater, and Kalamarus uses it in his mission to destroy all sea life he comes across. The Aqua-Blaster was destroyed by Kalamarus when he accidentally missed while throwing his trident at Max. The explosion of the Aqua-Blaster subsequently destroyed the Man-Eater.