Mecha Godzilla 2 is back once again and now he’s up against Dino Piranha! Dino Piranha is pretty quick and strong, but can he take down the mighty Mecha Godzilla 2? Mecha Godzilla 2 has a lot of ammo on his side and taking down Dino Piranha pretty quickly. Mecha Godzilla 2 wins.