One tip I can give is if you go to 'Set up Slideshow' and set it to 'Browse at Kiosk', it prevents cheating as long as you have 'Advance on Mouse Click' turned of in transitions. It also prevents people from right-clicking. Also, I'm kind of fluent in Spanish since I took Spanish 1 last year and the year before that I took Spanish Beginners. Oh, another tip is to use triggers in your games, really useful for setting up click triggered events. I spend way too much time on random things like this since I don't have anything better to do, so I know a lot about the features of PowerPoint. But I believe that anyone who is willing to put in the time and effort can make a great game, whether in PowerPoint or in something that requires actual coding, which I don't know how to code by the way. Also, I think it would be fun to play your new game or work on a game with you!