This game has lots of things going for it! Really liked some of the puzzles, and the game feel and atmosphere is charming. The art is cute, and the music relaxing, didn't get old as I played... And I did play for quite some time, just had to beat it:P
The grapple mechanic was a lot of fun, although some indication of whether you are in range or not would be an improvement! This holds generally for things like activating a switch or breaking trash as well.
I'll leave a ss from a bug where I got stuck in the walls. I had to quit the game and start over. This lead me to having to complete the tutorial again. Would be nice if you could just run past the guy explaining the controls, but when I did that I was unable to dig with RMB.
That being said! I had a great time playing! Hope you expand the game in the future, I would be interested in seeing future development!