Here is the full list of all 11 circloO achievements.
Complete all levels in the circloO 2 pack in no more than 30 minutes
Complete all levels in the circloO 2 pack in no more than 24 minutes
Complete all levels in the circloO 1 pack in no more than 20 minutes
Complete circloO 2 level 1 in under 15 seconds
Complete all circloO 2 levels
Complete all extra levels
Complete all circloO levels
Complete Extra Level 5
Complete circloO 2 level 6
Complete circloO 2 level 14
Complete circloO 2 level 22