I have a friend who could probably do some of the stuff that Russian dude pulled off if he tried...he can do backflips and frontflips from a standing position on level ground so I'd guess he could do them jumping off of things
Still crazy though...I'd love to see the cops try and chase after that dude
And about the keyboard layout...looks similar to mine, I've never used the wasd keys ever since pretty much the first game I ever played was 1.6 back in the day and his keys were set up with the arrows and that's just how I learned and got used to it...the only thing that is somewhat difficult is when you need to assign a lot of keys