I enjoyed this and got to the end, which is rare for me :). There are small problems that others have highlighted, of course. I did find jumping a bit hit and miss at some points, so that's probably the most important thing if you spend more time on the game. I also found not being sure what was below when dropping downwards a bit of an issue. Also, because I'm a bit slow, the music came to an end, so that needs to be on a loop! All in all, good work!