Alien Storm (エイリアンストーム) is a 1990 beat 'em up/shooter arcade game by Sega. It was later ported to the Sega Mega Drive/Genesis and Sega Master System. The Sega Mega Drive version was also released on Wii's Virtual Console in 2007. The game appeared in Sega Mega Drive Ultimate Collection for Xbox 360 and PlayStation 3.