I had fun with this! My favorite part was definitely the jump where you had to thread the needle through the small opening. More clever stuff like that would keep me interested while playing. On the same level, I did run into some hit boxes that seemed off but I was still able to make it! After that part, I couldn't tell where the end was. I think it would be helpful if there was a camera pan through the level at the beginning, and then the player could think about what kind of jumps they will have to make. A 'view map' option could work too. Either way you have a really solid core mechanic here. Another thing I wanted to add was the AWSD controls would fit this game better since you are using the mouse. Keep it up!