I bought this when I got the Nintendo Switch since I haven't played since Nintendo 64. I wanted a few games to try out and see what I liked to play. This is only 19.99 most places which I think is a great price for the game. I have only had to repeat each level 3 or so times to complete it and it gives you arrows and tells you exactly what to do, which I need and love. I wish there were more games like this for the novice player! It had helped me get used to the controllers/system/joystick and it has been well worth what was spent. Not sure how many levels there are but even if there's 10, for training purposes I would still have bought it! Good graphics fun guns and different variations of zombies and tasks.