Thank you again for the feedback. I will implement a little cutscene for the game over screen and I will work on the controls as I continue building. I did get a lot of feedback on the invincibility frames, so I will definitely be increasing those. I wanted to do a lot more before the submission of this first version, but I didn't have any more time. I spent a lot of time on mechanics and then I cut myself short on levels.
Thanks again for the feedback.