Sony Smash Bros.

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Alundra Ape Escape Arc the Lad ATV Offroad Fury Beyond the Beyond Buzz! Calling All Cars! Colony Wars Cool Boarders Dark Cloud Destruction Derby Downhill Domination Dropship: United Peace Force Echochrome Extermination EyeToy FantaVision Folklore Formula One G-Police Gangs of London Genji Getaway, The Ghosthunter God of War Gran Turismo Grind Session Heavenly Sword

Hot Shots Golf ICO InFamous Intelligent Qube Jak and Daxter Jet Moto Jumping Flash! Kileak: The DNA Imperative Killzone Kinetica Lair Legend of Dragoon, The Legend of Legaia Lemmings LittleBigPlanet LocoRoco Mark of Kri, The MediEvil MLB Motor Toon Grand Prix MotorStorm NBA ShootOut NCAA Final Four NCAA GameBreaker NFL GameDay NFL Xtreme NHL FaceOff Okage: Shadow King

Omega Boost PaRappa the Rapper Philosoma PoPoLoCrois Porsche Challenge Primal Pursuit Force Rally Cross Ratchet & Clank Resistance Rogue Galaxy Shadow of the Colossus SingStar Siren Sky Odyssey Sly Cooper SOCOM: U.S. Navy SEALs Syphon Filter Turbo Prop Racing Twisted Metal Uncharted War of the Monsters Warhawk Wipeout Wild Arms White Knight Chronicles Xtreme Games

There's plenty of worthy characters 

and this isn't even a complete list of their currently owned franchises