Thanks! Yeah, my brother also said the third level was too difficult, so I tried to make it easier, but I think you're right that it needs more tweaking (probably those little platforms on the right should be wider).
As for the instructions being confusing, do you remember what the confusing parts were (for future reference)? There were a lot of very specific things going on, but after being submerged in these mechanics for three days, it's impossible for me to see which are well explained and which aren't!