I don't do much posting, but someone has to put this up…
PlayStation All Stars: Battle Royale is an upcoming game for the PlayStation 3 that will feature characters from Sony's notable IPs.
While the game play is similar to Super Smash Brothers, there are some differences. Instead of knocking the opponent off of the arena, the game requires the player to combo so their meter builds up. Once the meter is at a certain level, the player can be able to do a super move that inflicts massive damage. If the meter is at max, the special attack could be a 1-hit KO.
Confirmed characters:
Kratos (God of War)
PaRappa The Rapper
Fat Princess
Radec (Killzone)
Sly Cooper
Sweet Tooth (Twisted Metal)
Confirmed Stages:
Hades from God of War being attacked by the Patapons.
LittleBigPlanet mixed with Buzz! Quiz. (If you don't answer questions, damage builds up!)
Ratchet and Clank environment that contains a Hydra from God of War 1
Jak and Daxter with Hot Shots Golf characters raining golf balls on you or something like that
Here are some screenshots from the game: