The game is free, so it's a no brainer, you should try it. The difficulty is all over the place and some weapons are simply useless, but once you figure it out, the game has a lot of content and will offer a challenge for those who wish it. I had a ton of fun playing it because it's so simple and fast to start and game and get to blowing stuff up. 5 stars despite the flaws because it's just fun and free.