Thanks for the feedback! Wow such a big comment!
Waiting to age can be boring and we have already added a fast forward mechanic, which we'll launch in the next update.
About the music I definitely agree, it was rushed through in the jam, so yeah we'll spend more time on it to make it longer and have more parts to it.
Punching is also something we have already changed and we'll add to the game once the jam is over. The character now only hits in the first frame of the animation instead of doing it all the time, which we knew it was a problem but didn't have time to fix during the jam.
About the levels... the order isn't really the best one. We had them all done and we had no time to put them in place, so we had to decide an order quickly which led to this problem. They are all in the same scene so it is not just about changing the scene that loads in. We'll definitely add more levels and change the order in another update in the future. Also the really hard jump you talk about has already been changed, now it's way more unforgiving lol.
Same happens with the end, it is better than having nothing. We'll also work on it.
Thanks so much again for such good feedback! After reading all of it I didn't expect that last paragraph hahaha. Glad you liked it :D