I’ve played it three times now. First time I failed. Second time when I got toward the end it suddenly moved the playing area back down and filled the entire area with caged butterflies, but they kept filling in and wouldn’t stop. I had to quit the level! Third time, I used a cheat on the last move to blow up the last of the blue balloons and was likely about to win — when I used the it, the game filled up with caged butterflies again, although this time they did not keep filling in so I simply lost the game and quit.