Played this game for years and I'm able to complete levels without having to purchase anything. But I can now say the game is rigged. I wish I had my screen recorder on because it just didn't make sense. I had one bubble left to pop and 3 more moves. I decided to combine a disco ball and rocket. I had enough colours around the bubble that I knew it would be popped by at least 3 rockets. The rockets went through the bubble but never popped it. The algorithm picks and chooses when you can win.