4-in-1 Fun Pak combines four board games to play against the CPU or a fellow gamer. The include titles are Chess, Checkers, Reversi and Backgammon. Each game features a number of different difficulty settings (1 being the easiest, 6 being the hardest), with simple black and white visuals and a challenging CPU opponent to take on. Multiplayer is available, either using the same Game Boy between two players or using the system link option to play with two Game Boys.