Tricky, hit a wall after not getting enough stars to unlock the next world and didnt feel like replaying levels to improve my times. Not bad, but not really that fun to me either, didn't make me feel like trying to improve the times, the simple formula that barely adds new mechanics and eyecandy unlike other "attrition platformers" of its kind isn't the problem but it also doesn't help. There are better options out there filling this niche.