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.