[IdiotSavage]

If you want to see what a random distribution looks like:

  jot -r 100 0 1 | rs -t 10

I noticed my "fake randomness" is lacking long sequences of the same key. I feel like I'm "predictable" when I press the same key 5 times in a row, yet that happens a lot in a truly random distribution.

[AlexanderZ]

With Brain Frog I went even further - it doesn't actually check L/R. Instead, it checks what you do after a landed/blocked punch (some people tend to switch after a block, others insist on hitting the same side until they land a hit).