Metroid Prime 3: Corruption/Bosses

Berserker Lord
The Berserker Lord is basically a more powerful version of the Berserker Knights. In battle you shoot the red orbs on the Berserker Lord's shoulders. After being shot enough, the orbs will shatter and the Berserker Lord will fire energy blasts at you. You must then shoot the blasts and they will return and hit the Berserker Lord. Repeat this until its head plate shatters. You can then shoot its head until it is defeated. You encounter two Berserker Lords throughout the course of the game; one on the G.F.S Olympus that battles you before you go to Norion, and the other in Elysia that is guarding the second bomb shard.

Meta Ridley
At the first you are above him. His attacks are a laser beam and strange red blocks. You must shoot in his mouth to damage him. After taking some damage, he will grab you. Now you must look at which part of his body is glowing, and shoot that part. After he takes some more damage, you will be under him. Avoid his fireballs and shoot in his mouth. Repeat this until you win. You must defeat him before you reach the bottom of the shaft.

Rundas
You must shoot him until he is stunned. Then use the grapple beam to rip his armor off and blast away until he regenerates his armor. Repeat until he dies. His attacks are an ice beam that freezes you and an attack where he runs up to you and slashes you with an ice blade. He will also fly around and throw snowballs which can be shot for goodies. When his HP is cut in half, he starts to use an attack were he swings around a massive icicle and throws it. When he has only 1/4 HP he starts using hypermode; he will become much stronger and harder to stun.

Korakk
First shoot the pirate hussar on top of the beast until he dies. Then the beast will try to grab you with its tongue. Shoot the tongue and when it is stunned, activate morph ball, roll under it and lay a bomb. Then pull its tail with the grapple beam. It will rear up and reveal its weak belly. Quickly strafe around it and shoot its belly. Repeat until you defeat it.

Mogenar
His attack is to ram you. To defeat him, you need to shoot the red orbs and then overload them with phazon. Concentrate on one of the orbs as they slowly heal themselves. The more an orb is damaged, the lighter its color will be. Sometimes he will swap them. Once one of the orbs is destroyed, quickly activate hypermode and shoot the place where the orb was. This will permanently destroy it. When all of the front orbs are destroyed comes the tricky part: the back orb. The easiest way is to wait until he uses his ram attack, avoid it and then quickly shoot the orb.