Here is the full list of all 20 It Takes Two achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
All minigames found!
Put on a show and die trying.
They had no way out.
The truth was out there all along!
You did it! CO-LLA-BO-RATION!
You reached a higher state of mind. Or at least some peace and quiet.
Release that tension at the root level.
Scurvy! Ye look smashing, captain!
Don't feed the animals! Or do, they're adorable.
Again? Keep track of your kids!
Took things a bit too far, didn't you?
Breathe some wind into your ocarina, my skyward princess!
Helltower? More like hello-from-up-here-tower!
Isn't it pretty? That's going on the fridge.
Choo Choo!
Now look who's extinct!
Guess it was time to cash out.
Shoot for the stars, literally.
Self-inflicted paparazzi.
It takes two to… torture.