I hope this is an OK place to report a bug!
I'm on level 27 (playing in browser), and got into a situation where I'd pushed the top guy so their body was right next to the first door, with their hand in the doorframe. Once I pushed away the crate holding the door open, the level reset completely, except now the controls don't work.
I can still hit Esc to bring up the menu, the music is playing, and the scrolling background is still, y'know, scrolling, but WASD/Arrows do nothing. Refreshing the page to reload the game fixes it, and retains my progress (thankfully!)
Good game so far, really enjoying it :)