After 50 minutes my brain can take no more. 's good practice, but I am not patient enough for it.
Can you spot how many screw-ups?
There is no prize, so I don't see why you would do this, but you are free to do as you please. Unless your country has already been taken over by the robots. Then you are free to do as your robot masters please. And they have no reason to do this either, so, you know, why ARE YOU DOING IT?
BONUS COLOR TESTS
BONUS BONUS BONUS BONUS BONUS BONUS BONUS
Yes, bonus is a funny word and you should say it as often as possible, as loud as possible.