I love everything about this. The concept, the artwork, how it controls. I'd like to see an obvious indicator that the rope is ready to be climbed on since I fell a lot from trying to jump on a rope that he just wouldn't connect to yet.
My main issue is the same as everyone else's. I don't mind time trials but this is the kind of thing I'd rather be able to explore freely and leave speedruns as an optional challenge.
If the whole point of the game is the time management aspect, though, then the time needs to be much longer or each artifact should add more to it or something. It doesn't feel balanced for the amount of time you get right now.
I'll save the game in case there are updates down the road so I can show it off on my channel then. Regardless, really great job on this!