Here is the full list of all 22 An Airport for Aliens Currently Run by Dogs achievements.
You've been given a human heart! Unfortunately...
Entered the airport known as Uranus. *snrrk*
Pet characters 5 times in a single session.
You've broken the laws of physics and figured out a handy way to get yourself out of horrible mishaps! Teleporting is rad!
Entered the airport known as Phobos.
Met David Bonie for the first time.
Entered the airport known as Patsville.
You received a spray can from a cat.
Entered the airport known as Elf Planet.
Met Chad Shakespeare for the first time. The pleasure is yours.
Entered the airport known as the Marinara Trench.
Entered the airport known as Beachwell.
Managed to catch a flight for the first time after getting knocked-out by a 7-foot tall husky. Good for you!
Received a dark, spherical gift, for free.
Found out that dogs don't care about the concept of human currency. Hooray!
Opened your Pupperdex - for the first time of many!
You started playing. Thank you for supporting our weird dog airport game!
Pet characters 25 times in a single session.
Pet characters 50 times in a single session.
Pet characters 100 times in a single session.
Pet characters 250 times in a single session.
Pet characters 704 times in a single session.