More feedback:
1) I just can't stop playing it! It's my go-to now for whenever I have a random few minutes to kill. I just keep it in a permanent tab in my mobile browser. I've gotten good enough to beat the story almost every time (mobile controls + samurai + don't waste point on special); and I can easily say "just one more run". I would suggest allowing key remapping for the PC version. I genuinely think being able to use two hands increased my ability and made it more fun.
2) Having played it on mobile so much, I would like to ask that the buttons be widened, or placed closer to the edges of the screen. I'm extending my thumbs *juuuust* a little bit more than is comfortable to try to reach the middle