Plasmarine is the boss of the seventh dungeon in Oracle of Ages, Jabu-Jabu's Belly. It looks like a large jellyfish. It only has three attacks: swimming into Link, creating a shield of electricity that will damage Link if he touches it with a weapon, and shooting an orb at Link that matches Plasmarine's color. When Plasmarine shoots an orb at Link, Link needs to stand in front of the orb and switch with Plasmarine using the Long Hook. This will cause Plasmarine to change color, and it will be hit with the orb of the other color. It will be damaged by this. About seven hits with a different colored orb will defeat Plasmarine.