Door Door

Door Door is a single-screen puzzle-platform game by Enix published in Japan in 1983. Originally released for the NEC PC-8801, it was ported to other platforms, including the Family Computer. Controlling a small character named Chun, the player is tasked with completing each stage by trapping different kinds of aliens behind sliding doors. Chun can jump over the aliens and climb ladders, and must also avoid obstacles such as large nails and bombs. Door Door was designed and programmed by Koichi Nakamura, known as one of the creators of Dragon Quest.