After leaving Cinematronics, he worked briefly for Gremlin before becoming an independent contractor with Gottlieb. His first game for Gottlieb was the esoteric Reactor, and he had it written into his contract that he would get a credit on the title screen for designing the game. [3][4]
Previously, programmers had occasionally sneaked their names into their games as easter eggs, and Berzerk designer Alan McNeil's signature was on every cabinet, but Reactor was the first coin-op to have the designer's name appear in-game with the manufacturer's blessing.[5]
Skelly also designed two other games for Gottlieb, Insector and Screw Loose, which were never released. Later he worked for Incredible Technologies, then Microsoft Research.[6] In 1983, a book of video game cartoons by Tim Skelly was published as Shoot the Robot, then Shoot Mom.[7]
When Sega moved most of the development of Sonic the Hedgehog 2 to North America, Skelly joined the team and assisted with art and design of the game.
Later in his career, he worked on the popular Golden Tee arcade games.
