Here is the full list of all 24 Title_Pending achievements.
Print all of, wait, what?
Cause Bankruptcy
Complete the Cycle
Complete the Game in the Fewest Restarts Possible
Finish the Playtest
Meet Them
BACK TO THE VERY BEGINNING
Become Trapped in Speedrunner Hell
Cover Yourself in Paint
Wait, there's Fall Damage?
Construct the Debug Glasses
RRRRRRRRRRRRRRRRRRRRRRR
Purchase 200 Stanton Sodas
Play Too Fast
Get Softlocked
Destroy 10 Security Cameras
you're winner!!
Skip the Entirety of Level 2
Find a Vent Hideout
What a convenient time for a Hammer!
Escape Level 1 (for now)
Please Behave Yourself
Have a hearty bowl of oatmeal
Do it Again