Samus is the only character representation of the Metroid universe. Samus' sprites were ripped from Metroid Fusion. Curiously, those sprites were not from Samus, but were taken from her clone-enemy, the SA-X. Samus uses a variety of beams in her attacks. Mega Man X uses a similar moveset so he could be considered a semi-clone of her. Samus' pros slightly overshadow her cons, allowing her to rank in the higher mid tier.