I think this game has a really neat concept. It is pretty difficult although I feel as though the game relies too heavily on the idea that if you mess up you'll usually just reach the bottom. As well as that, metroidvanias usually have multiple branching paths, and in this game it seems like one continuous straight path. Metroidvanias tend to have a really light puzzle aspect but that aspect seems to be thrown out the window for this game.
Another thing to note is that it would be a neat idea if the icons on the powerups had maybe a bit of flavour text to them, I didn't initally realise what the grab technique was for until I messed around for a bit. Additionally, it could be neat if you initially had a safe environment to get used to the new technique, the first grab being something that you will start from the beginning if you mess it up feels a bit cheap imo.
That being said the artstyle is pretty neat, sound effects could be tweaked a bit, had to mute it after a while because it was getting a bit annoying. Overall I really liked the concept of the game and I hope you're able to make something out of it