Hand tracking?! Whaaat! How amazing was that?! I didn't realize you had to jump over the text on the first level before I made my way to the exit and realized my duck neck was stretched allllll the way back to the start LOL. Seriously this is genius and that little quack quack with my hand LOL. My only criticism is that the ramp up of difficulty is really quick, I would add some simple intro levels that slowly introduce the mechanics one by one. Like just moving the ducks from one box into another using your left hand. Then the next level would be having your ducklings follow you down a narrow hallway, and so on and so forth. This is really well made!