If you aren't sure of the source, run the file in a sandbox environment.
The genius of the game lies in its mini-games. To win the big races, you have to level up four core stats: Jumping over obstacles on a treadmill. Flying: Navigating through the sky to build stamina. Swimming: Diving and dodging objects in the water.
At its core, Duck Life is a sports simulation RPG. You aren't just playing a game; you are managing an athlete. After a massive tornado destroys your farm, your only hope to rebuild is to train a duck to win professional races. The Training Loop