Thank you for taking the time to play again!
1. I agree, the movement is still a work in progress, but should feel better next version. Movement speed and gravity will be going down a little. There will also be a bug fix where falling speed was more aggressive than intended on certain circumstances.
2. The ball getting stuck on shape placement when it should roll should be fixed for next version. But, if you mean that you find it weird that the ball shoots away on shape placement, that is intended as something experimental. I think some levels could use the ball being shot as a mechanic. Especially because different shapes shoot the ball differently, like the triangle shooting at 45 degrees. I am gonna try to make it more obvious that it is intended by adding sound and particle effects though.
3. Yeah, levels, mechanics and polish are on the roadmap.
Once more, thank you so much for taking the time to play again and writing feedback! I really appreciate it!