Here is the full list of all 20 MatchyGotchy achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Have your star fall asleep 10 times.
Take 300 selfies.
Level Loony Lander.
Level Guru Moon.
Level Spacey Galaxy.
Win the game! Get 100% explored on Xanadu.
Let at least one star die.
Heal your stars a total of 10 times.
Eat 100 burgers.
Build a total of 1000 ships.
Fill up hearts 100 times.
Play games a total of 50 times.
Level Doctor UFO.
Level Pirate Planet.
Clean up a total of 10 times.
Experience sugar rush 10 times.
Level Speedy Sputnik.
Build 10 ships and unlock Xanadu.
Survive all stages: smol egg, tiny baby, awkward teen, rocket surgeon.
Level Matchy Star.