not bad for a test
The Jumping at the beginning was well done, I think, maybe improve the Flying slightly with better scrolling backgrounds...and I actually thought at first that your replay button was broken, because I only saw the text highlight Icon when I hovered my cursor over it.. but then I realized that I only had to move my cursor towards the outside of the button to make it work. But otherwise, a good attempt! Keep working on it and you CAN be good like Alvin Earthworm.