Hai no Majutsushi is an implementation of Mahjong tile game. The opponents in the game are characters from Konami's popular franchises: Simon Belmont from Castlevania series, Aphrodite and Poporon (Popolon) from Knightmare series, a snatcher from Snatcher, Dr. Venom from Gradius series, Goemon from Ganbare Goemon series, Penta the penguin from Antarctic Adventure series, and Moai from Gradius / Parodius series.