Multiplayer beat-em-up games with 4-player support

The best multiplayer beat-em-up games with 4-player support, including Gauntlet Legends, Charlie Murder, Teenage Mutant Ninja Turtles 2: Battle Nexus. See if the games support online, couch, and split-screen play, whether the game has a cooperative campaign or separate multiplayer modes. Find out the number of players supported and check out ratings of multiplayer games.