Yeah, the 'next level' issue actually breaks a lot of other things (the reason it happens is it thinks you're still on the last variable because a level counter doesn't get ticked up, so it'll actually override your save for that previous level in addition to making you stuck on the current level). I only found it and patched it after it was too late.
I'm glad you and others seem to like the movement - in conjunction with the difficulty, I figured that was going to be one of my major sticking points with how heavy the player controls. Good to see it stuck.
Thank you for playing!