Top Secret

Bionic Commando, released in Japan as Top Secret is a 1987 run and gun platform video game developed and published by Capcom for arcades. It was designed by Tokuro Fujiwara as a successor to his earlier "wire action" platformer Roc'n Rope (1983), building on its grappling hook mechanic; he was also the designer of Commando (1985). The music was composed by Harumi Fujita for the Yamaha YM2151 sound chip. It is the first installment of the Bionic Commando series.

The game was advertised in the United States as a sequel to Commando, going as far as to refer to the game's main character as Super Joe (the protagonist of Commando) in the promotional brochure, who was originally an unnamed member of a "special commando unit" in the Japanese and international versions.

The protagonist is a commando equipped with a bionic arm featuring a grappling gun, allowing him to pull himself forward or swing from the ceiling. Despite being a platform game, the player cannot jump. To cross gaps or climb ledges, the hero must use the bionic arm.