The levels don't seem to have any curve or increased challenge so I'm fairly certain they are procedurally generated. They all feel the same really quickly. The ads are very frequent and intrusive. BUYER BEWARE: The "no ads" purchase only removes videos that are automatically played. After every level (which pass very quickly) there is a very slow transition where they only give the option to watch a video for more points or to open a present that you have to earn anyway. Big waste of time.