Galaga: Destination Earth is a 2000 3D video game, an update to the popular Golden Age arcade game Galaga. Destination Earth includes nine stages, each consisting of several "waves" of alien attackers and bonus waves. Most of the stages are planetary locations, like an Ancient Egyptianish Mars, Metropolitan Earth, and Saturn. Some are non-planet astronomical objects like the moon or the sun. On the final stage, the player finds must battle on a "planetoid". The "waves" consist of three preset views denoted as ALPHA (1st person), DELTA (side scroller), and GAMMA (top view or original Galaga view). Source: Wikipedia, "Galaga: Destination Earth", available under the CC-BY-SA License.