Because you like Ratchet in Ratchet & Clank
After figuring out how both the light and dark halves of his soul could co-exist, Jak is maturing into a real hero. See them in Jak and Daxter.
For Sly Cooper, stealing isn't just about the haul. It's also about the journey. See them in Sly Cooper.
Rayman is a fearless hero who flies into action with a propeller on his head and a smile on his face. See them in Rayman.
Fox McCloud leads a team of pilots through the Lylat System in search of the evil genius Andross, the villain that killed his father. See them in Star Fox.
Most of the world has been wiped out from The Beast. And when The Beast comes, Cole MacGrath will be ready. See them in inFAMOUS.
Frank West enjoys the adventure that comes from his work. But a zombie outbreak might be a little too much even for him. See them in Dead Rising.
He may be one of the Four Horsemen of the Apocalypse, but War still maintains a strong sense of honor. See them in Darksiders Series.
Wei Shen is an undercover cop on a mission for justice (or at least vengeance). See them in Sleeping Dogs.
M. Bison is a diabolical megalomaniac hell-bent on dominating the world. See them in Street Fighter.
Simon Belmont is a vampire hunter bravely carrying on the family business. See them in Castlevania.