I have an idea i have wanted to get out there for a while. This app is a game which is fairly simple and can possibly make great hits. My idea is this; make the game where it consists of different color orbs (or balls). Choose a color that you must touch in order to get past the level. Make it easy at first, like 3 or 4 colors and moving slowly across the screen. Then, as you progress, make more colors (not too complicated though, such as making colors like teal. Keep it simple, such as red blue black pink etc.) and then make the balls go by the screen faster (but keeping some still going slowly of course. Rule of thumb, keep it diverse). This will make the objective addicting, simple, and challenging. If you want to progress further, you can add in packs where it consists of more orbs (remember to keep one orb with a color objective, i.e. 15 red 15 black 10 green and 1 blue. In this case, blue is the objective to find.) You can also add in obstacles for a more complicated challenge, for instance, a black bar (or block). When an orb passes through this block, or bar, it cannot be touched, or in this case (due to it being black) seen. There are many ways you can go with this, but why stop there? Just be creative. Remember, it doesn't matter how stupid the idea may be, you can make it fun no matter what you choose!