Overkill

Rated with 4.5 stars, this game is said to be the best. However, after the first wave of enemies, I was bored out of my mind. This game placed number 2 on the Top Free list. Trust me, after the first wave, you will become bored too. If you think the app is good, then leave a comment about it. For those of you who never heard of the game, just download it to try it out. It is free and can easily be deleted.