First, in Stage 2, in the first room with water rising and falling, you fall down some collapsing platforms and then have to jump your way back up on the other side of the pipes. Couldn't you walk through the pipe at the top, rather than falling down?
First, about stage 2's water room, I discovered that if you walk too far into the pillar, you'll get stuck. The same happens for every wall. Also, I did try to climb my way up by jumping inside the wall, but I got stuck.
Also, in any of the rooms where you have to travel mostly vertically (the rising-water rooms in Stage 4 come to mind), would it be faster to get yourself in the right wall and jump upwards in that wall?
That's the first thing that I tried to do when I first arrived at this room, but unfortunately, it won't work. First, certain bricks on the wall can't be walked thru. Second, the platforms sticking out of the walls prevent me from going higher.
