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