Here is the full list of all 9 Gravity Error achievements.
Collect all Orbs in Chapter 5.
Collect all Orbs in the game.
Collect all Orbs in Chapter 4.
Collect all Orbs in Chapter 3.
Collect all Orbs in Chapter 1.
Collect all Orbs in Chapter 2.
Die 25 times in one level.
Create a gravitational loop.
Finish a level without necessarily using all gravity shifters.