Amazing mechanic! The "a-ha" moment I had when I realised I could shoot the toothpicks and use them as grapples was super satisfying. Then doing it was even more exciting.
Coming from recently playing Boneworks, I have to say I also really enjoyed your climbing mechanic which was far less motion-sickey than theirs... haha.
Also the graphics and cute little narrative was a really nice touch keeping me going "RIP ___ 'The Thirsty' " really got me.
The only two changes which came to mind were (1) I could only grab the bow with my right hand, but always wanted to hold it in my left which was a tiny bit inconvenient and (2) it would have been sweet to find the mechanics naturally instead of having the text explanation on the wall, as it felt a little too spoon feedy--especially as the mechanic actually felt incredibly intuitive.
Honestly, this game really makes me wonder why this mechanic hasn't been used before. But hey, maybe it'll be a key part of your breakthrough project.
Can't wait to see what you make next!