Nisemon Puzzle da Mon! - Feromon Kyuushutsu Daisakusen! (Japan)

Nisemon Puzzle da Mon! - Feromon Kyuushutsu Daisakusen! is a Japan-exclusive puzzle game for the Game Boy Color. Released during the handheld's later years, it carries a quirky title that translates roughly to "Fake Puzzle! Pheromone Rescue Great Strategy!" The developer and publisher are not widely documented, so this remains an obscure entry in the system's library. Players familiar with Japanese-only releases from this era will recognize the typical cartridge format and monochrome-compatible color palette.

At its core, this is a tile-matching puzzle game. The player is presented with a grid of colored blocks or icons and must clear them by swapping, matching, or removing groups. The goal appears to be rescuing characters or progressing through stages tied to the pheromone theme. Specific mechanics like special tiles, chain reactions, or time limits are not well documented, but the genre conventions involve careful planning and quick reflexes. Japanese text menus may require some navigation experimentation if you do not read the language.

For collectors and puzzle fans, this title is worth a look precisely because it is so obscure. It has a unique theme that sets it apart from more mainstream puzzle games like Tetris or Puyo Puyo. Compared to other late-era Game Boy Color releases, it represents the kind of niche, weird experiment that makes retro hunting rewarding. Do not expect a deep storyline or polished production values, but do expect a challenging and odd little puzzle game that you probably have never heard of.