Here is the full list of all 14 keyg achievements.
Closer than you think.
Find another way.
Learn the truth.
Survive the disintegrator level.
Save OCT.
Survive Arrows level.
Complete that one Red Bagels of Death level.
Get to the Master Center.
Pass.
Get to the Common Cells.
Save PLU.
Beginning of the End.
That one room where everyone takes pictures.