This was really cool! I can't believe there aren't more ratings for this one, it's very unique and I haven't played another game like it. The art is gorgeous, especially the pixel art, and I love the slashing mechanic a lot. If I had one suggestion, I would unclutter the "other yous" that appear, because some can be hard/impossible to reach depending on where they spawn. If I could change it, I would make the other yous be in more of a sparratic line ahead of you, meaning you can easier slash them easier while also "moving forward," which I think would be very on theme for this narrative.
Anyways, I had a blast with this one! I would love to see and check out more games in this style, good luck with any future projects!