Type the letters K, L, K, L and so on as many times as you can in 2 minutes. At various places you need to type in five keystrokes to earn the point, so don't give up just because you didn't get a response to a single keystroke.
At various points (the first time is after you reach 20) you need to enter five keystrokes before it gives you the point. We had to do it like this because quizzes have a 500-answer maximum and the total number of hits here is 840.
I DID IT!!! 840 keystrokes in 2 minutes!!! Now, I must say, this comment was written several minutes after the feat, since my poor right hand was (and still is) aching. Happy, but in ache.
At various places you need to type in five keystrokes to earn the point, so don't give up just because you didn't get a response to a single keystroke.