Wow, I never would've thought to consider pinball for a climbing game, but when you really think about it... it could totally work! That's really quite ingenious 🤔
You said in a previous comment that this is still a raw product, so I don't want to be too critical here. I think you know that having more engaging sound/music would up the gameplay experience. Pinball machines are usually pretty loud, because they want to get the player excited about hitting different parts of the board and racking up points! I also thought there should be some sort of penalty on the shaking if you do it too much, or at least a limit/cooldown.
This is a great start to something really fun though, keep plugging away and improving it!