Here is the full list of all 22 Polandball: Can into Space! achievements.
Reach the half checkpoint.
Consecutively touch one countryball 10 times.
Collide with SERBIABALL 20 times.
Collide 50 times with any balls in one flight.
Reach the third checkpoint.
Touch every countryball existing in the game.
Obtain 100 coins from GERMANYBALL in one round.
50 deaths in air.
Use 100 brakes in one flight.
Get atttracted by RUSSIABALL, CHINABALL and CANADABALL
5 deaths on earth.
Have negative money (debt).
Collide with JAPANBALL 20 times.
Trigger two magnets in less that 7 seconds from each other.
Do a full 360 spin in one flight.
Die for the first time.
First launch.
All attributes to maximum.
Rocket fully upgraded.
Finish the game and witness the amazing end-game cinematic.
Die when close to the Moon.
Reach the last checkpoint.