First attempt: trying to figure out how this works. Which keys should I press? How are they mapped to my physical keyboard? Does my keyboard layout matter? Got to 20%.
Second attempt: just going for it and hacking on whatever key is still highlighted! Feeling like a hacker! Got to 80%!
Third attempt: trying to memorize which buttons are where, very methodically and careful. Got to 20%. :P
I liked the second attempt best! :P For touch typing, I wished that the two keys on the home row would've been highlighted. I could see clicky key sounds work wonderfully here!