Marine Freakasaur is a Thunderian Bakugan and the evolution of Omen Freakasaur. He was created when he gained the Aquos Energy.
- Swagosaurus Rex - Freakasaur gains 100 G-Power.
- PaleoMax Rover - Returns Freakasaur and all Aquos Bakugan to their base levels.
- Tricera River - Freakasaur gains 200 G-Power.
- DimetroSaw - Freakasaur gains 150 G-Power.
- Freakasaur Sensei - Freakasaur's G-Power is doubled.
- Cephala Cunning - Places 1 Bakugan your opponent controls to the owner's used pile. You must control exactly 3 Aquos Bakugan.
- Marine Enforcement - Reverses all your opponent's G-Power boosts.
- Marine Freakasaur Swagger - Freakasaur gains 1000 G-Power.