Thanks for your reply.
I did have another problem, but it's also down to the corpse tossing. It's the level where you have to go up between 2 walls with spikes on left and right. The idea is to kill yourself at the top, then go back up there and toss the corpse down to the button on the floor, but the corpse would often get stuck on the wall spikes and I couldn't get it off.
Either way, overall the mechanics are still great, and using the corpse to platform off is a great idea.