Complete Mission 1: Worm Menace.
Exterminate 150 spikesnaps.
Exterminate 100 wardens.
Exterminate 50 elite enemies of any type.
Exterminate 1 centipede.
Pick up a score bonus 30 times.
Pick up a health bonus 20 times.
Pick up a bomb bonus 10 times.
Exterminate 650 flies.
Exterminate 400 worms.
Exterminate 250 crabjaws.
Complete Mission 2: In a Cobweb.
Exterminate 200 spikesnaps.
Exterminate 125 wardens.
Exterminate 75 elite enemies of any type.
Exterminate 2 centipedes.
Complete Mission 3: The Wardens.
Complete Mission 4: Snake Pit.
Stay alive until the end in any Survival mode.
Reach a score of 29001 in Survival: Veteran mode.
Exterminate 500 flies.
Exterminate 300 worms.
Exterminate 200 crabjaws.
