Catapult Turtle + Yamadron → Kairyu-shin

Catapult Turtle + Labyrinth Wall → Boulder Tortoise

Catapult Turtle + Mystic Lamp → 30,000-Year White Turtle

Catapult Turtle + Metal Dragon → Sea King Dragon

Catapult Turtle + Blast Juggler → Giant Turtle Who Feeds on Flames

Catapult Turtle + Sky Dragon → Sea King Dragon

Catapult Turtle + Thunder Dragon → Kairyu-shin

Catapult Turtle + Magician of Faith → 30,000-Year White Turtle

Catapult Turtle + Spike Seadra → Kairyu-shin

Catapult Turtle + Kappa Avenger → Hyosube

Catapult Turtle + Barrel Rock → Boulder Tortoise

Catapult Turtle + Minomushi Warrior → Boulder Tortoise