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.
The truth was out there all along!
Helltower? More like hello-from-up-here-tower!
All minigames found!
You did it! CO-LLA-BO-RATION!
You reached a higher state of mind. Or at least some peace and quiet.
Isn't it pretty? That's going on the fridge.
Now look who's extinct!
They had no way out.
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!
Choo Choo!
Guess it was time to cash out.
Put on a show and die trying.
Shoot for the stars, literally.
Self-inflicted paparazzi.
It takes two to… torture.