Thank you so much for playing and for the feedback!
I agree that the nudge mechanic can be a little frustrating. I really wanted to implement the idea, but I faced a lot of issues. I needed a way to trigger the nudge that was easy to do but also not something you'd do accidentally all the time (might have failed with that part).
A dedicated nudge key could be an option, but I was concerned about adding another button to the existing 7 just for a nudge. Another idea was to make it a multi-purpose dodge button, but you could still accidentally nudge a block when you're just trying to dodge out of the way.
My compromise was to use the wall jump mechanic since it requires purposeful inputs. But, as you pointed out, it's easy to get so used to wall jumping that you accidentally nudge a falling piece. I also made the timing for wall jumping very generous, which makes accidental nudges even more likely.
I really like your idea of having an option to disable it, but probably not as a dedicated mode. An even better solution might be to let players choose between using the wall jump for nudging or having a separate nudge button. I could just swap the condition from 'jump + direction' to 'nudge button + direction'. I would be adding an extra button, but it would be optional. Reminds me that I should have added a test screen inside of the control menu to quickly test the controls.
As for getting out of a cramped space, I'm trying to make those moves more forgiving. I've already added a few things, like a high tolerance for the 'squash death' condition, which will push you out of a block to save you if it can. I also added coyote time to help with tricky jumps. But you're right, there's probably more tweaking I could do.
It's great to hear that you find the game polished. Thank you again for all your thoughts!