A time capsule shot into space back in 1982 is received as a declaration of war by aliens, who respond with multiple waves of 1980s video games-made-real, which only lifetime-loser video game nerds can face.
Uh. From the ground up, this movie cannot work. It's a kids movie which relies upon the nostalgia only a handful of middle-aged men might have but hopefully won't.
See also The Wizard (1989). No.. actually don't.