Classic Game Room - GLOBAL DEFENSE Sega Master System review
https://www.amazon.com/dp/B07HGKN55S TOME OF INFINITY
http://www.ClassicGameRoom.com All CGR stuff
https://www.amazon.com/dp/1719917345 Ultra Massive 5
https://www.amazon.com/dp/1719877599 Ultra Massive Genesis
https://www.amazon.com/dp/B07GMZCQFQ Lord Karnage
https://vimeo.com/classicgameroom CGR continues on Vimeo
http://www.amazon.com/v/classicgameroom CGR 2085 show on Amazon
ULTRA MASSIVE VIDEO GAME CONSOLE GUIDE VOLUME 1: https://www.amazon.com/dp/1521937176
Follow CGR at:
http://www.twitter.com/ClassicGameRoom
http://www.facebook.com/ClassicGameRoom
http://www.instagram.com/ClassicGameRoom
Global Defense!!!! (aka SDI or Strategic Defense Initiative) Classic Game Room reviews GLOBAL DEFENSE for Sega Master System from 1987, an arcade game where players control a satellite and shoot down ICBM (Intercontinental Ballistic Missiles) and other enemies protecting Earth, the moon and other intergalactic locations. SDI, or Global Defense, is available for some other game systems and old school computers as well as the SMS. Global Defence review (if you spell is wrong) is from CGR and covers the 1987 Global Defense on SMS Sega Master System from Sega released in 1987.