Across the Gameboy line of consoles, there are a handful of Hamtaro games published by Nintendo. These games tend to involve word based puzzles and a variety of minigames. Speedruns are primarily based around text mashing and optimally routing the minimal puzzle solutions to progress the game.
Hamtaro: Ham-Ham Heartbreak – Any%
Ham-Ham Heartbreak (HHH) is the second game in the series of Hamtaro games published by Nintendo. The game itself is very straightforward to speedrun, as the main point of solving puzzles using words has already been solved. The run is slightly faster on Japanese purely do to text speed, however it is perfectly playable in English as well.