G:Metroid

C:Important Note|N/A|N/A|Note: Start a new game with all the codes off except for Infinite Energy until Samus obtains the Maru Mari ball.
C:Start With Infinite Missiles|6879:FF|Phil The Hammer|
C:Untouchable|0070:02|Phil The Hammer|In many screens, Samus must be already moving in the direction you want her to jump, and she cannot change direction in  midair. Also, she cannot pick up objects left behind by defeated enemies.(Missiles, energy pellets,etc.)
C:Infinite Energy|0107:04|Phil The Hammer|The number of energy units will change if Samus is hit, but she'll never run out.
C:Infinite Energy Tanks|6877:0A|Phil The Hammer|