From above come asteroids, spaceships and other obstacles which it is to shoot. There are 3 levels (backgrounds), 3 levels of difficulty, diverse weapons, super-weapons and bombs. One moves with Auto-sustained fire from left to right and ballert everything down. The graphics are nice and colorful, many particles, good progressive music. All in all a nice pastime, just with the simple gameplay, as you know it from earlier. Since it is difficult from wave to wave, it's fun to keep on coming. On the Kindle HDX the game runs very fast and has just the right flow of the game.