That's a really interesting post. We can all help each other.
I would like to share my game too: BalloOne
https://itch.io/jam/gmtk-2019/rate/460644
Only One level, jumping trough 1 km, using only one button. This is the concept idea for my game.
Viewing post in The secret to getting players and ratings...
I think it's really helpful to think of jams this way! We all worked hard to make something we're proud of, the least we can do is play each others hard work!
But what a charming little game! I would love to see like a little charge up UI element that shows where the ball is going to land (or maybe you left that out on purpose...;) Great job though!