Sony's exclusive mascot fighter mash-up, PlayStation All-Stars Battle Royale, has received a massive update with over 100 balance adjustments combined across all character, along with additional improvements as well. The list of changes is absolutely huge, so I suggest heading over here to read up on all the tweaks.
In addition to all of the balance adjustments, today's update also unlcoks the third costumes for both Zeus and Isaac, for all players that own them. If you do not have these DLC characters, Sony is offering a temporary savings on "The Graveyard Pack" which, for $1.99, includes both characters and a stage based on MediEvil's Graveyard mashed with elements from the world of The Unfinished Swan.
PlayStation All-Stars Battle Royale was released for PS3 in late 2012. Though sales were apparently "on track" with estimates, review for the game were pedestrian. Shortly after its release, Sony ended the working agreement with developer SuperBot Entertainment.