Even In the video above the last key doesn’t drop until 12 of the extra 35 moves have been used . So it’s obvious that it can’t be done with 19 moves . I give up.
Used party booster x 2 and 4 UFOs and switch hands and lollipops . The last key won’t drop. Maybe it’s set up to drop the last key at the 20th move or later . But. There’s only 19 moves . This needs to be fixed it’s a waste of time.