Here is the full list of all 19 Countryballs: Over The World achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
'Murica is a damn continent!
Everything is good!
I love my brother Czech
Reeee
Dr. Österreich
What should I say?
Omae wa mou shindeiru!
Czech stronk!
Unlocked by getting 20 points in Find Poland endless mode
Hue
Herro
Je m'appele Claude
Germoney
What did they do to me?
Yeah.
Polen uber alles!
You wanna go for a vodka?
Tunak tunak tun
I of helping