I would add them if I could, but I've already hit the PICO-8 token limit, and the code I wrote is pretty messy and from 1.5 years ago, so I don't really want to try and figure it out again.
well, I beat the game anyways by now :-)
That's great!
I did originally think about adding checkpoints when I made this, but then I figured that the game was quite short anyway so I didn't bother.