First off, great job on your first game jam! Short jams like this are quite difficult as you really have to cut back on scope and get everything done quickly. There were a lot of little details that I did like about the game, such as the rain and extra jump mechanics. One issue I had was that the music was a little too repetitive and basic. If your looking for good free music to use I highly recommend Alkakrab, Kevin McLaughlin, or xDeviruchi. Overall, great job :)