Its made to be a hard game, and that lava part is probably the hardest spot, but its IS possible, I made sure the whole game could be completed before posting it. I'll probably make it easier when I have the time. Thank you for your comment! :)
Perhaps you didn't not see the grabbing spot in the last rectangle? If you step on the floor all the grabs reset so you re-use it for the last step. It's actually pretty easy compared to the top left section...
