Congratulations on the delivery of your game and for risking a first game in this engine. Even though it was a prototype, I missed a sound feedback and the art could have followed the same line: or everything pixel art, or everything flat, or everything drawing on the paper (loved the boss hahaha). I would place the timer on the top HUD. I also suggest calibrating the jump better or making it clear that a jetpack. Also puts the controls at the beginning so the player knows what to do. It took me a while to test the buttons to know which one was a jump. Again, congratulations on the work! If you can, evaluate mine too. It's BOSSMOJI