Thank you for reporting the bug.
Does this mean the game became slow and slowed down, causing it to crash?
I'll check that, but for now, try resetting and starting over from the previous stage.
Eventually with enough restarts I could get through, but what happened was the screen went black each time the platform made contact with the tendrils.
One other level further down I encountered black screens repeatedly as well when dropping one of the demons from above to directly stand behind another demon.