This is a board game, where you play a pink-haired girl who tries to make her way out of a world full of creatures out to rape her. Battles are essentially memory tests, with 4 options, selecting the correct 2 results in victory. Failure leads to a different adult scene for each game over.
There is also a x68000 version of this game, which features many more encounters, and a large scrolling world with an animated girl icon. I assume this was a later version of the game.
This game was remade one final time for the Viper Island series, with expanded graphics. The last disc of the Viper Island series also included a sequel to this game.
Nana vs Nana has translated this game to English, and agreed to let me host it.Download (English Translated Version)