I just got to understand the ti-84+ a bit and i'm already trying to make a game for it, and that's how I came across this site. It really is usefull. I still have one week of vacation left so i'm trying to understand the TI-BASIC before it ends.
And about the game that i'm planning to make, here's an example of how it should be, made in ms-paint.
It's meant for two players on one calculator, it's probably going to be hard but I don't mind.