The 13 opponents in the scenario mode are all taken from Adventures of Sonic the Hedgehog (1993) and are, in order: Arms, Frankly, Humpty, Coconuts, Davy Sprocket, Skweel, Dynamight, Grounder, Spike, Sir Ffuzzy-Logik, Dragon Breath, Scratch, and Dr. Robotnik. Dr. Robotnik, Scratch and Grounder are regular characters in the series, Coconuts is a semi-regular, and the other robots all appear in the pilot episode.
The game is a variation of the Mega Drive version of Puyo Puyo, a Tetris (1984) clone that has a sizable fanbase in Japan. The characters of the Puyo universe have appeared in over 50 games across 15+ platforms ranging from MSX2 to Sega Dreamcast. Series star Arle Nadja began her magic training in 1989 on an MSX2 RPG called Madou Monogatari, and in 1991 the more well-known Puyo Puyo was created using characters from the Madou Monogatari series.