Either take the birds off the timeline, or make sure they are getting GC'ed - after 4-5 failed attempts at a level there is severe lag when they are on screen.
Kong - when are you going to start putting these "Hey, cool game, I can't wait to get to the next lev...I HAVE TO WAIT OR PAY??? WTFing F!?!" games in a special category that I can go ahead and never be decieved again when I come to have fun?
Wow - what a beautiful ending. Great game! The only thing I would add would be to make it easier to tell which men are which once you put them down, and have the option to snap to the grid.