21 out of 5? I'm buying this right now!
:D YOU GOT IT. it's weird though, I enjoyed Zombie Derby 1 but this felt more, hassle and not as fun.
Complete 10 Hard puzzles without using Reshuffle, Undo, or Hint. - Mahjong by Microsoft (Mobile)
Win 4 puzzles of different difficulty in a row from Easy to Expert. - Mahjong by Microsoft (Mobile)
Complete 4 different Expert puzzles. - Mahjong by Microsoft (Mobile)