Because you like Samus Aran in Metroid

Resourceful and courageous, Chun-Li is dedicated to using her considerable strengths against evil. See them in Street Fighter.

Raiden is an efficient soldier haunted by his repressed past. See them in Metal Gear Series.

Wario is greedy, gross, and gluttonous. See them in WarioWare.

Raz is a 10-year-old boy who mostly stays in his own head, which makes sense since that's where he is strongest. See them in Psychonauts.

For Sly Cooper, stealing isn't just about the haul. It's also about the journey. See them in Sly Cooper.

If anyone can stay optimistic and friendly under harsh alien rule, it's Alyx Vance. See them in Half-Life 2.

Big Boss is a disillusioned mercenary commander who wants to create a world for soldiers (and soldiers alone). See them in Metal Gear Series.

Sarah Kerrigan is pretty much the Queen Bitch of the Universe. See them in StarCraft .

Jim Raynor is a decent man in an indecent universe. See them in StarCraft.

The Kid doesn't talk. He just acts with determination. See them in Bastion.

A celestial caretaker, Amaterasu is the stuff of legends. See them in Okami.

Those who stand against this singular super ninja are doomed to fail. See them in Ninja Gaiden.