I really enjoyed it up until the horrible invisible level. Really, is it necessary? It just shows laziness in your creative ideas, which were, until that point, quite excellent.
1. The sound effects are painful to listen to. Please try to get better quality sounds that work well when there are lots of them played at once.
2. Game is too hard! You shouldn't have to replay level 3 six times to find the perfect combination to win. Especially when each level takes as long as it does.
Other than that, great game!
14 you just shake like mad for a while.
Game was ok. Bit repetitive. Not that interesting.
And level 25 is easy - you just bounce the ball between the two up down paddles. If you hit the ball in the centre of the paddle, the ball wont move far in a direction.
 "Monkey Metric"){kind=icon}
 "Use Boxmen"){kind=icon}
 "Savior Tower Defense"){kind=icon}
 "me and the key"){kind=icon}
 "Box Clever"){kind=icon}
 "Orbital Decay"){kind=icon}