You must reach the top of the launch silo and open the hangar door. Collect pieces of junk to build a flying apparatus while avoiding snot rockets from the common cold and his contagious contraption, the flu bug machine.

Up Arrow Key - Jump / Go Upstairs.
Right Arrow Key - Run Right.
Left Arrow Key - Run Left.
Down Arrow Key - Duck / Go Downstairs.
Spacebar - Action / Use Flying Machine (When Competed).