Play any type of Game at Y8.com. The biggest Game Collection to play free online. Flash, Unity 3D, Html5, Android, Java and Shockwave.
If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Set your difficulty and type to kill the incoming waves of attacking ninjas.
Use keyboard to lay the game.
Look inside the inside the game foe further instructions