Wonder Boy in Monster Land 2100 is an NES action-platformer developed by Micronics and published by King Records in 1987. Set in 2100 AD, it follows a sibling pair abducted by an alien ship into a parallel dimension. Players control the sister, who pilots a robot named Robbit to find her kidnapped brother and return to Earth. The game features side-scrolling gameplay where players make Robbit jump, shoot, defeat enemies, and dodge obstacles. If Robbit takes damage, the sister is ejected—she can’t attack and must repair Robbit within a time limit, or lose a life. The game requires players to repeatedly jump or shoot in unmarked spots to find secrets or progress. To get the true ending, players must beat the game twice. Though only released in Japan, all in-game text is in English, making it accessible to English-speaking players.