It's difficult to talk about this game and not mention Super Smash Bros.
Essentially, PlayStation All-Stars: Battle Royale is Sony's equivalent to Nintendo's franchise-blending beat 'em up platformer. The entire gameplay revolves around your choice of an iconic character from the PlayStation universe trying to beat the living daylights out of three others in a 2D side-scrolling environment. But Battle Royale does add a few extra features to alter the gameplay from its obvious inspiration.
For starters, the level environments are highly themed and interactive. You might be battling in a futuristic Metropolis as seen in Ratchet and Clank, or setting-to in the flaming underworld of Hades from God of War. At random moments in your battle, another Sony franchise will "invade" the level and you'll see the environment change, which will go so far as to actually affect the match in various ways. For example, the invading Patapon stage might see the little critters throwing spears at you from the distance, or in Hades a multi-headed hydra might suddenly lurch forward into the arena to fling players out of the way.
One particularly clever background stage is based around Buzz, where the map transforms into an impromptu quiz show. It even goes so far as to present players with a Buzz-like question and four coloured answer buttons for players to stand on before the timer runs out. The end result is a mad, frantic battle around the one correct answer platform to avoid any penalty. It's a welcome change in pace to the action and ensures that players are always aware of their surroundings.
While many matches end up as mad button mashing, Battle Royale has a decent combat engine buried beneath the eye-watering frenzy too. Three of the face buttons - triangle, square, and circle - deliver a variety of attacks ranging from light to heavy; while X is used for jump. The left analogue stick moves your player around the screen, while the right stick is used to throw your opponent in a particular direction. Overall, each character has around a dozen unique moves, each cleverly styled around their character's persona. Finally the triggers are used to activate a super attack, once powered up through normal combat.