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