Eating is cheating - Don't trigger any nausea during the Slightly acid level.
Green peace - Push the second bulb inside the sundews without letting the particles fall inside.
Make yourself scarce - Take the shortcut in the level Wastewater.
Roundabout - Finish the Nova level by only turning in one direction.
Say "truck" - Make sure your fire engine remains undamaged.
Souvenir - Keep your glass ball intact in the Tahiti level.
The price to pay - Finish a level after at least 10 nitroglycerine explosions.
Waiter - Don't drop any liquid from the tank in the 2011 vintage level.
Every drop matters - Finish a level with exactly the right amount of liquid.
Quack Quack - It's time for the crash test.
Total reaction - Finish all levels.
Gold rush - Earn 48 gold medals.