Just came across a small bug, I ran into this little room with 2 hearts, this snake turret lowered me to 0 hearts in one shot.
Now I'm stuck in the running animation facing the turret, moving to the right veeeery slowly. Not quite sure what caused it, except I think the block may have been moving down while I narrowly made it inside the room.
If it helps, eventually I made it to the right wall, and when I passed the chain, it made chain noises. So collision is still on.