Destroy both generators on Claustrophobia without killing a Tank.

Destroy 3 Flypods within 5 seconds on any level of Insect Infestation.

Destroy 3 Worms in sequence on The Ooze.

Destroy the Boss without opening more than one outer door. Only 1 of the 3 outer doors may be opened to any degree.

Complete level Fizz Wheels without killing a Fizz Wheel, ( the rolling wheels connected by a laser ).