I like the art style here - the red trees are nice and creepy and the main menu with the title made out of the environment is really cool.
The grappling hook is a good mechanic and felt good to use when I got it to work but it was pretty finnicky so I spent more time grappling with the controls, haha. I ended up stuck at the bottom of the first level after only getting one key. Sorry I didn't play more because I wanted to see what the faustian bargain stuff was but I just couldn't get the hang of the grappling.