a large cultural impact and controversies. Fighting games often include a single-player campaign or tournament, where the player must defeat a sequence of several computer-controlled opponents. Winning the tournament often reveals a special story-ending cutscene, and some games also grant access to hidden characters or special features upon victory. Character selection In most fighting games, players may select from a variety of playable characters with unique fighting styles, special moves, and personalities. This became a strong convention for the genre with the release of Street Fighter II, and these character choices have led to deeper game strategy and replay value. Custom character creation, or "create–a–fighter", is a feature of some fighting games that allows a player to customize the appearance and move set of their own character. Super Fire Pro Wrestling X Premium was the first game to include such a feature. Multiplayer modes Fighting games may also offer a multiplayer mode in which players fight each other, sometimes by letting a second player challenge the first at any moment during a single-player match. Some titles allow up to four players to compete simultaneously. Uniquely, the Super Smash Bros. series has allowed eight-player local and online multiplayer matches, beginning with Super Smash Bros. for Wii U, though many classify Super Smash Bros. under the platform fighter subgenre due to its deviation from traditional fighting game rules and design. Several games such as Marvel vs. Capcom and Dead or Alive have featured modes that involve teams of characters; players form "tag teams" to fight matches in which combat is one-on-one, but a character may leave the arena to be replaced by a teammate. Some fighting games have also offered the challenge of fighting against multiple opponents in succession, testing the player's endurance. Newer titles take advantage of online gaming services, although lag created by slow data transmission can disrupt the split-second timing involved in fighting games. The impact of lag in some fighting games has been reduced by using technology such as GGPO, which keeps the players' games in sync by quickly rolling back to the most recent accurate game state, correcting errors, and then jumping back to the current frame. Games using this technology include Skullgirls and Street Fighter III: 3rd Strike Online Edition. History Origins (1970s to early 1980s) Fighting games find their origins in martial arts films, especially Bruce Lee's Hong Kong martial arts films which featured concepts