Zero Wing is a 1989 Japanese shoot 'em up arcae game developed by Toaplan. Like other shoot 'em ups of the time, it featured no real plot except to distinguish that the player is a lone hero who will save the universe from an evil force. However, it enjoyed a degree of success in the arcade and was subsequently ported to the PC Engine and Sega Mega Drive in 1991. Gametrailers.com listed Zero Wing as the seventh worst video game in its "10 Best and Worst Video Games," though the main focus was on its bad English translation and not its actual gameplay (see below).