In this episode Bill is working out to the song Macho Man. The character of Gorilla is voiced by Randy " The Macho Man" Savage.
In this episode it is claimed the Army physical is mostly running on a treadmill.
The U.S. Army physical fitness test actually consists of three events, each requiring a passing score of 60%, pro-rated based on age and gender.
The events are 1) Push-ups. 2) Sit-ups. 3) Two mile run