Nice job 😁 I see the vision and it works well - for the most part. As other people have said, the sensitivity is waaayyyyy too high, it would've benefited from a round of testing during development. One of the big things you'll learn is that your game is definitely too difficult, making it easier will make you feel like it is too easy- you've got to remember you have played for hours and the average player will play for less than 10 minutes!
Visually it is ok - I think the background doesn't really fit the style, but I love the cel shading! Your colours could also do with a little bit of work, though it could well be the background that is making it look too saturated. I highly recommend https://mycolor.space for picking colours that work well together. For the background, a simple gradient would work a lot better I think 🤔