Tec Toy produced games exclusively for the Brazilian market and began a network service for the system called Sega Meganet in 1995 .
In Brazil , the Mega Drive was released by Tectoy in 1990 , only a year after the Brazilian release of the Master System .
Tectoy   produced games exclusively for the Brazilian market and began a network service for the system called Sega Meganet in 1995 .
In Brazil , the Mega Drive was released by Tectoy in 1990 , only a year after the Brazilian release of the Master System .