Earn 48 gold medals.

Push the bulb inside the droseras making sure not to drop any particles.

Finish a level after at least 10 nitroglycerine explosions.

Don't trigger any nausea during the Slightly acid level.

Keep your glass ball intact in the Tahiti level.

Keep all your liquid in the tank from the 2011 vintage level.

Reach the end of the Watercourse chapter.

Reach the end of the Nursery chapter.

Reach the end of the Laboratory chapter.

Reach the end of the Human body chapter.

Reach the end of the Sewers chapter.

Reach the end of the Rocket chapter.

Reach the end of the Foundry chapter.

Reach the end of the Nuclear power plant chapter.