The game requires the player to drive through the city maze gathering dots like Pac-Man before reaching a brothel where the player is required to fight off venereal disease and collect keys to unlock sex scenes.
These factors often led to widespread condemnation from the Japanese media.
Also released in 1984 was Strip Poker: A Sizzling Game of Chance for the Commodore 64 which was created by Artworx Software.
In 1986, Martech released a Strip Poker game featuring digitized pictures of Samantha Fox, on the Spectrum, C64 and Amstrad.
Players that reached the pink door were rewarded with a controllable sex scene.
Like with Koei, several other now-famous Japanese companies such as Enix, Square and Nihon Falcom also released erotic adult games for the PC-8801 computer in the early 1980s before they became mainstream.