Metroid-Samus is one of 9-Volt's microgames in WarioWare: Twisted! It is set in the NES game Metroid. It returns in WarioWare Gold as one of 18-Volt's microgames.
Tilt the Game Boy Advance to have Samus Aran aim her arm cannon to shoot the Metroid. If the Metroid reaches Samus, it kills her.