CheatCodes.com has all the official Metroid Prime Trilogy Wii cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Sunday May 26, 2013 for Metroid Prime Trilogy are shown below.
The total missiles you can get is 255 that is 51 missile expansions like from the first metroid.
After you get the boost ball and spiderball go to where the the ball is found and go to the door above. You need 36 or more missiles to destroy all cracked pillars parts to get to the top and find the Wave Buster. Three missile per pillar part. Note: If you leave the room the pillars parts that you destroyed will be back.
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