Age of Zombies, the first Fire TV game from Halfbrick Studios (makers of immensely popular games like Fruit Ninja and Jetpack Joyride) is on sale for just $0.10. This game is a great classic shoot-em-up action game with twin stick controls. The game is compatible with both the Fire TV and Fire TV Stick, but does require a game controller to play.
Yo from the reviews on amazon, this is chock full of spyware. Pretty much every review says this. Avoid.