Here is the full list of all 28 Tea Party Simulator 2015 achievements.
Activate the turnip.
Why would you shoot ted?! He's your best and only friend!
Use a frag grenade to end your tea party.
Let the chi flow through the spasticity of your hand.
This hand ain't goin' nowhere.
Completed the final level.
Completed the fourth level.
Use the dynamite.
Completed the third level.
Witness the potato box flying through space-time.
Activate the monolith.
Completed the second level.
Witness the zeppelin.
Activate the aviators.
Activate the snake.
Witness the Red Baron.
Completed the first level.
Activate the calm book.
Yes, well ... I'd call you a buffoon too if you poured hot water on me. Indeed!
Flip the bird, if the bird were a fancy bird.
Activate the top hat.
Activate the fish!
Activate the sunglasses.
You really aught to do something about that stabbing habit.
Make a tea within a tea, or something.
Get an 'S' rank in every level, in both Mode 1 and Mode 2.
Get an 'A' rank in all Mode 2 levels.
Get an 'A' rank in all Mode 1 levels.