Here is the full list of all 23 Puddle achievements.
Take the shortcut in the level Wastewater.
It's time for the crash test.
Finish the Nova level by only turning in one direction.
Who's behind the scene??
Finish all levels.
Reach the end of the Nuclear power plant chapter.
Make sure your fire engine remains undamaged.
Reach the end of the Foundry chapter.
Keep you glass ball intact in the Tahiti level.
Reach the end of the Rocket chapter.
Reach the end of the Sewers chapter.
Finish a level with exactly the right amount of liquid.
Reach the end of the Human body chapter.
Reach the end of the Laboratory chapter.
Reach the end of the Nursery chapter.
Push the bulb inside the droseras making sure not to drop any particles.
Never give up! Keep trying again and again!
Reach the end of the Watercourse chapter.
Welcome to Puddle game!
Earn 48 gold medals.
Finish a level after at least 10 nitroglycerine explosions.
Don't trigger any nausea during the Slightly acid level.
Keep all your liquid in the tank from the 2011 vintage level.