Star Gate is a challenging action-adventure game that follows up on the success of Defender. Your mission is to rescue humanoids from the clutches of aliens, while avoiding and shooting other enemies. The twist in this sequel is that you must now carry the rescued humanoids to safety through the Stargate, which also serves as a warp point for your character.
As you navigate through the levels, you'll encounter more enemies on screen than ever before. To aid you in your quest, the Inviso button makes you invisible to enemies, but be careful not to become invisible to yourself, as it will make it harder to track your movements and shots. You must use your bullets to figure out where on the screen you are while wearing the invisibility cloak.