"Beat 'em ups" are a genre of video games where players control characters to fight against waves of enemies. These games typically feature side-scrolling or 3D environments, allowing players to move through levels while engaging in hand-to-hand combat. Popular titles include Streets of Rage and Final Fight, which emphasize cooperative gameplay and combo attacks. In beat 'em ups, players often have access to various moves, weapons, and power-ups to defeat opponents. The genre has evolved over the years, incorporating elements from other genres, such as role-playing and adventure games. Notable franchises include Teenage Mutant Ninja Turtles and Double Dragon.