The ball feels weightless and unresponsive at times like there's some invisible lag to your input, this makes getting in between certain obstacles a challenge, I would try, either to make the gaps between obstacles larger or increase the velocity of the ball falling down. Did you find this an issue when you tested the game?
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I personally didn't notice that issue, but you aren't the first person to point it out and I likely didn't notice as I was just used to the mechanics from all the testing. I should probably apply the velocity faster at first, then slow it down the longer you hold, so it feels more responsive and you don't sink as much.
Thanks :)