Brazil was one of the SMS' most successful markets. It was marketed in that country by Tec Toy, Sega's Brazilian distributor. A Sega Master System III (and even a semi-portable SMS VI) had been released in that market and several games had been translated into Portuguese. The characters in the said games had been modified so that they appealed to Brazilian mainstream audiences (for example, Wonder Boy in Monster Land featured Mônica, the main character from a popular children's comic book in Brazil, created by Maurício de Sousa). Brazil also produced 100% national titles, like Sítio do Pica Pau Amarelo (based on Monteiro Lobato workmanship) and Castelo Ra-Tim-Bum (from TV Cultura series). Brazil was also where the first several Sonic the Hedgehog Game Gear titles started out. Tails, one of the characters, made his worldwide debut in Sonic the Hedgehog 2 for the Master System. That title would later be ported to the Game Gear in other markets.
Master System Compact: wireless variant developed in Brazil.The most notable Master System step in Brazil was the compact 100% wireless system and developed by Tec Toy. The console transmit the A/V signal in radio frequency, dispensing cable connections. It was produced from 1994 to 1997 and is still a target for console collectors.
Later in its life in Brazil, Game Gear games had been ported to the Master System and several original Brazilian titles were made for the system. Tec Toy also produced a licensed version of the wildly popular fighting game Street Fighter II for the Master System. Despite the limitations of the console, the game turned out to be fairly well received. The console production was familiar to the Brazilians, which explains the success in that market. During the Master System's final days in Brazil, games had been marketed for small children.
The Sega Master System is still being produced in Brazil. The latest version is the "Master System III Collection". It uses the same design as the North American Master System II (Master System III in Brazil), but is white and comes in two versions: one with 74 games built-in and another with 105 games built-in on an internal ROM. However, in Brazil it is hard to find the 3D Glasses, the Light Phaser and even cartridges, leaving most Brazilians with only built-in games.