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The 100% category for Metroid Fusion is the opposite of 1%. Instead of worrying about health and missile management, the player must remember item placements and room strategies, and most of all, 100% cleanup, which is the most difficult segment of the entire category.

Many new players have the misconception that 100% is easier than any% because the player is forced to have more energy and missile tanks for bosses. However, strategies for both categories are exactly the same; if the player is relying on an overload of expansions to pull them through the bosses, then it is clear that the player does not know how to fight bosses.

It is highly recommended that the player start with learning Any% first, as most strategies and skills learned in Any% will easily carry over to 100%.

Current Fastest Time

Unrecorded: 1:06 by Biospark

Recorded: 1:07 by kirbymastah

Leaderboards for Metroid Fusion 100% can be found here

Route

Each section of the game will have a counter of how many energy tanks, missile tanks, and power bomb tanks the player should have by the end of it. It is also recommended to be playing on a New Game+ file, as the game provides a checklist of how many of each type of expansion Samus got in each sector, or in the entire game.

Abbreviations: ET = Energy Tank, MT = Missile Tank, PB = Power Bomb Tank

Main Deck Beginning

Sector 1 - Charge Beam

Sector 2 - Bombs & Hi Jump

Sector 4 - Speed Booster

Sector 3 - Super Missiles

Sector 6 - Varia Suit

Sector 5 - Ice Missiles

Meltdown

Save the Animals

Sector 5 - Power Bombs

Main Deck - Space Jump

Sector 2 - Plasma Beam

Sector 5 - Gravity Suit

Sector 4 - Diffusion Missiles

Sector 6 - Wave Beam

Sector 1 Cleanup

Sector 3 Cleanup

Sector 5 Cleanup

Sector 6 Cleanup

Sector 2 Cleanup

Endgame