Teenage Mutant Ninja Turtles 2: Battle Nexus is an action-packed video game released for the Xbox in 2004. It's based on the 2003 TV series and allows players to control the four Ninja Turtles as they go through various stages fighting the Foot Clan, Triceratons, and other enemies. Players can switch between turtles on the fly and use cooperative moves to advance. It features a variety of environments, a mix of melee combat, and platforming elements, aligning with the beat 'em up genre.