This is a remake of the classic space invaders game. In this game you control a space ship to destroy a team of space invaders. The invaders will shoot you back in return and will approach closer and closer. There are special enemies, once destroyed, they will give you some very nice weapons.
A context menu should be shown when right-clicking or, on touch devices, long-pressing in the game. This menu especially allows to play in full screen and control the volume.