セガ・マスターシステム
Sega produced several iterations of the Master System. The Master System II, released in 1990, removed a number of components to reduce cost, including the Sega Card slot, reset button, power light, expansion port, and startup music and logo. In Brazil, Tectoy released several licensed variations; the Master System Super Compact functions wirelessly with an RF transmitter, and the Master System Girl, molded in bright pink plastic, was targeted at girls. The Master System 3 Collection, released in 2006, contains 120 built-in games. Handheld versions of the Master System were released under several brands, such as Coleco in 2006.