Let's see, many here idolize Kangaroo as the best, then someone reveals #120, a puzzle that has been claimed for over a year and they are surprised? I'm not surprised either because although I know that the probability of solving 135 with Kangaro is the equivalent of solving puzzle 70 with brute force, I also know that the probability exists, even if it is low.
So the user could have been lucky, or he simply had time looking for that key.
What I find suspicious is that he is indirectly asking for merits as if this were Instagram.