Moonhenge

You see the MoonHenge for the gathering of the space druids, oh yes. Destroy wave after wave of enemy ship with ritualistic blasting to collect the space-runes. Collecting all three runes results in the opening of the space portal which will take you to moonhenge, where the ancient astro-druids are meeting for the final ritual at the end of the universe... Left/right cursor keys to steer. Up arrow to thrust. Z or Space to shoot.