Metroid Prime Cheats

To unlock the original NES Metroid, simply beat Metroid Fusion on GBA, then link the GBA (with Fusion in it) to the GCN (with prime in it) then at the main menu of prime goto the bottom where it says GBA link bonuses or something like that. Make sure you have beaten Metroid Fusion though.

To unlock the Metroid Fusion Suit, do the exact same thing only dont beat fusion, but beat prime.

This trick makes Ridley much shorter. While in his air form, wait until he flies above you and crashes down on you. Before he flies back up, hit him with the boost ball. If done correctly, he will lose his wings and the ground form will begin.

Near the point at which you start is something resembling a twig embedded into the ground. While standing on top of this twig, you are completely immune to Metroid Prime's shockwave, it's only (common) attack. The only things that can hurt you are the short range lunge attack and spawned Metroids, which fall easily anyway.

Curiously, while standing here, Metroid Prime will not change emission spectra without laying a pool of Phazon, which helps the fight along considerably.

During Ridley's second phase, use the Wavebuster. With enough Missiles, he dies in one hit.