If you ever wanted to build the most complicated paper airplane in existence, you should check out this Exotic Paper Airplane Gallery. This 54 step impossible plane is the one I stumbled to and tried, and failed to make. Granted, it is listed as the most difficult one to make on the site, but I still tried to make it.
I starting having problems around step 23, and by step 32 I was completely lost. I skipped ahead a bit, and I have no idea how getting folds like that is even possible. I’ll stick to my regular paper airplanes for the time being, at least until i practice some more.
I do like the Aero Spike:
But it too is rather difficult to make. I need to practice.