Full list of all 20 Chickens Can't Fly achievements worth 200 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Windows Phone.
Get 300.000 Score in a single game
Pass 5 checkpoints without touching a wall
Get 10000 points with a Corn Magnet
Get Gold on ALL experiments
Eliminate 1000 obstacles using the Butcher Shield, Holy Cross, Nuke or EMP
Get Gold for all experiments in a non-tutorial laboratory
Gather 1.000.000 total corn
Survive 20 checkpoints in Survival mode!
Have over 9 lives in Survival Mode
Get at least a bronze medal in all Physics experiments
Eat 5 sausages without dying
Pass 3 checkpoints without flapping the wings in Survival Mode
Get at least a bronze medal in all Military experiments
Get at least a bronze medal in all Cemetery experiments
Participate in the Global Weekly Challenge
Use 5 different delayed power-ups
Get at least a bronze medal in all Butchery experiments
Obtain a score multiplier of over 100
Complete all the Hatchery experiments
Obtain a gold medal in one of the experiments