Here is the full list of all 33 Goo Saga - there are HD Edition achievements.
Collect all crystals.
Defeat all bosses without getting hit.
Unlock the bad ending.
Complete Goo's journey and liberate him.
Defeat The Professor.
Complete 6 levels in normal mode by collecting 100% of the blobs.
Smash 20 Muzzlefrogs.
Defeat Mantodeus Boss.
Smash 20 Exapods.
Collect 15 crystals.
Complete 3 levels in normal mode by collection 100% of the blobs.
Find 15 hidden rooms and unlock the mysteries inside.
Complete 6 levels in time-trial mode with at least 10 seconds remaining.
Smash 40 O-Copters.
Smash and open 100 boxes.
Destroy 500 enemies.
Defeat Megalosaurus Boss.
Smash 12 blob pods and collect the blobs inside.
Activate 30 checkpoints.
Complete 3 levels in time-trial mode with at least 10 seconds remaining.
Destroy 250 enemies.
Defeat Loyal Guard Boss.
Collect 5 crystals.
Destroy 100 enemies.
Smash 20 Barkys.
Smash 30 Lil Stompers.
Collect your first crystal.
Complete 10 levels in normal mode by collecting 100% of the blobs.
Complete 3 levels in survival mode without any hit losses.
Complete 6 levels in survival mode without any hit losses.
Complete 10 levels in survival mode without any hit losses.
Complete 10 levels in time-trial mode with at least 10 seconds remaining.
Unlock all skins.