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