...and I was wondering why don't I have anything on my Calculator?

Does anyone know a good place to download some time passer games (Like Tetris) for a TI-83 Plus Graphing Calculator? One of my teachers in High School had Zelda on her calculator, I'm not putting my hopes up, but can my calculator do that?
FYI, if you couldn't tell, I ain't all that edjumicated in the ways of Calculator technology.