To get the death count down to one for level 1-3, the first death should be close enough to the first ledge so you can hop onto it. Then, being extremely careful, jump onto the pile of bones and stand on the left edge of it and the pile should start to move. You will start to slip off but very slowly. Try to repeat this without falling off of the bone pile and the pile should get close enough to the other ledge eventually. Then you can jump and hope you don't accidentally fall into the spikes. :D ( keep this going)