Score a combo higher than 40 before they lock the elevators

Make a thousand pancakes

Get off your well-toned bottom

Use all guns at least once

Perform a 10x combo

Destroy 200 glass panels

Kill 99 dogs

Perform an 8x combo

Throw a weapon at an enemy so that his weapon hits another

Perform a 6x combo

Vanquish 100 Peashooters, 100 Sunflowers, 100 Chompers and 100 Cacti

Reached maximum levels for all suits