 It received mixed-to-negative reviews from critics, with reviewers making comparisons with "Defender" and "Blasteroids".Similar to "Blasteroids", the player controls a space-ship that can move in any direction (but not diagonally) and destroy enemy ships and asteroids.A radar screen shows where adversaries may be located, and a "super-alien" will destroy the player if it appears on the same screen as the player's ship.