Monica at the Castle of the Dragon is a Sega Master System game released by Tec Toy in 1991, starring the character of comics, Monica. The game is an official graphical and textual reprogramming made by Tectoy in partnership with Maurício de Sousa Productions and authorized by Sega of the original game Wonder Boy in Monster Land. The game is a Platformer in which the player controls Mônica, armed with her stuffed rabbit, Samson. Monica has to go through twelve stages, each with monsters, items and its own scenarios.