115 games Atari 5200
She was found! Tempest for the Atari 5200 first saw the light of day at the World of Atari '98 show in Las Vegas. The game was 90% complete, with only the Superzapper, a few enemies, and no collision detection.
Track & Field (Hyper Olympic outside the US) was first released as a slot machine. The game has become a kind of standard for subsequent games of this kind.