CrazyBirdie Alright. If the screen size differs from the TI-84 Plus you may have to change a lot of things involving movement (going off map) and X-placement.
I can help you explain if something is unclear (I manually typed all the code on the calculator itself, that is why it looks unclean). It's also the first thing I created in Ti Basic without help from the internet, so inefficiency is probably everywhere.
To easily see or edit the code, you can upload the file to an online .8xp-viewer. That's what I did to copy it into Word.