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