Mr. Do! is a 1982 arcade game created by Universal. The game is similar to Namco's popular Dig Dug, and saw release on an extremely wide variety of systems. It was the first of a series of games, the most notable being Mr. Do's Castle, which was released in 1983. There were also Mr. Do's Wild Ride and Do! Run Run, both from 1984. The original Mr. Do! is still occasionally encountered at video arcades. The game was also released as an arcade conversion kit by Taito, where the case of an older (or perhaps broken) arcade game was refitted to play Mr. Do!.