 The laserdisc special edition includes an alternate ending to the final  aerial battle sequence. In it Russell Casse was rejected as a pilot for one  of the jets to attack the alien ship approaching Area 51.  However, he  arrives at the end of battle flying his crop duster (which he has been towing  behind his motor home) with a missile strapped to it. He then flies the crop  duster into the energy beam weapon of the alien ship to bring it down.