Here is the full list of all 22 Please, Don't Touch Anything 3D achievements.
Unlock ending #30 without pressing any unnecessary buttons
For unlocking all achievements
Press the hidden button in the menu
Delete save file with all open endings unlocked
Call 10 secret numbers
Unlock every ending
Restart the game 100 times
Lose in Tic-tac-toe
Don't look at the ghost for 15 seconds
Do not miss a single time in bomber scene
Solve the secret puzzle in 6 moves
Who you gonna call?
Got a dime?
You touch me, I yell rat
For pressing the 276 button 277 times
Click 276 times in 1 minute
Press 1000 buttons
Hammer the printer 37 times
Unlock the hammer ending
Press the red button
Throw all the trash away within 15 seconds
Wait for three more minutes after unlocking the peaceful ending