Reminiscent of Imagic's Atlantis, but with a reverse objective, Z-Tack has players control a UFO-like jet while firing lasers at enemy bases below. Their fortified positions will randomly shoot defensive missiles that sometimes transform into skulls, which in turn can convert to heat seeking missiles. If regular missiles, skulls or heat seeking missiles strike your jet, it will be destroyed. Although the bases are colorful and well defined, the jet and the six levels of landscapes are blocky and formless. Gameplay becomes overly repetitious, and its only challenge stems from the aggressive heat seeking missiles. Fans of this genre would be better served with Atlantis or Star Wars: Death Star Battle.