Another idea I had is that when people play games, normal they are not that satisfied when playing it so I would create a game app where you can customise the game that you want that is challenging or easy enough for you to play with. First of all you get a template of a game like Pac-man or you can start completely from scratch and design or change the features, physics, environment, characters of the game. I think this is a good idea because there will be a lot of different options for the user to play around with as well as its pretty much like creating your own game. In a way its like map creator in certain games for example happy wheels and GTA. But instead you can have the choice to completely change a classic game or make your own game and share it with friends.