Metroid: 25 Greatest Boss Fights RANKED

25. Kiru Giru - Metroid Zero Mission

Throughout the Metroid series, Samus can can freeze an enemy with her Ice Beam, allowing her to use its body as a platform to reach other inaccessible areas. Even though this is common practise throughout the franchise, it's rarely implemented for the bosses.

However, it's a necessary tactic to defeat Kiru Giru, who appears in the remake of the original game, Metroid: Zero Mission. When you enter the bug's room, Kiru will be curled up on the ceiling, protecting his weak spot. Samus has to freeze the Winged Ripper flying around and jump on it so she can blast the vines that are holding the Kiru up.

Once this overgrown larva is blasted enough times, it'll fall out of the ceiling, smashing through the ground, creating a new path to continue.