Really clever idea to have three different exes! I made the mistake of completing one of the levels with a bird before making sure the other two were in position and I didn't see an easy way to go back to the previous level, so I was put in a tough spot. It would be nice if instead of instantly taking you to the next level it had a small "you win!" screen where you have to confirm to go to the next level. Besides that small detail, it was well done. Really funny idea having the player run three games at once. :)