Thank you for checking out my game and providing positive, useful feedback! I'm really glad you enjoyed it.
I'll be sure to increase the speed of the player and to improve the pixel art so it isn't blurry once the jam is done! You're right about the collisions and I totally agree about the last section. I had a lot more content planned for it but I completely ran out of time at the end so everything was quite rushed! Definitely areas for improvement and thank you for taking the time to go over them in detail, It really helps me to improve :)