Mônica no Castelo do Dragão

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.

Captain Ugly and his army wants to dominate the world and leave it dirty. So Monica boards to prevent it, buying boots, shields, dresses and Samsons(stuffed rabbits) to strengthen. Despite being in the title screen, Captain Ugly does not appear in this game, the dragon in the cover is the last boss. Early in the game it is revealed by a witch with a crystal ball that Monica's mission is super-dangerous. Only she can beat Captain Ugly and its allies. For that Monica must leave for an adventure, if Monica fail she will be transformed into a polluted and dirty monster.