Space Strife is a 2D Space Shooter in which you can shoot a lot of alien enemies and their spaceships.
3 types of power up are available:
-Triple Shot = you can shoot three lasers simultaneously, instead of one
-Speed = you can increase the speed of your spacecraft
-Shield = you become invulnerable
There are also gifts and prizes within the game.
There are also advertisements that allow to keep the app free and give you extra rewards.