A while ago, I was bored and made this:
It's nothing special and could maybe use some optimizing, but it's pure-BASIC and is incomplete anyway (it's not exactly like Falldown since you can't roll on platforms and stuff). It should show that contrary to popular belief, this calculator can achieve decent scrolling speed (in this case, not even a single ASM lib was used).
Since that screenshot was taken, I made it so there are two platforms at a time and they are larger, but I lost that version and it was much slower anyway, since it switched to Line() which seemed much slower with smaller platforms (really, TI?), so I am unsure if I'll keep lines or switch back to Text like in the screenshot above.
It's not meant to compete in any way against other FallDown clones but it was to show that pure-BASIC scrolling on a CSE is somewhat possible.