No.  Square only works on iPhones, iPads, and many (but not all) Android phones and tablets. 

Square would work great for charging a gate fee and would be ideal in a concession stand.  You would get a ton of data to track sales on candy bars, sodas, etc to know what actually sold that day instead of you just seeing what cash you have.  You can use Square register for free if all you want to do is take cash but you can use the credit card processor side of square to open up all the other payment options as we continue to move into a cashless society. 

It wouldn't cost that much to get setup and  running, basically just an ipad and a stand for it (you don't need to use the Square stand for $100 if you don't want to though it is nice and heavy) any $15 or so stand will hold the ipad.  If you want paper receipts then it will cost a bit more to buy a printer too.