Bungie always peppered their titles with a great sense of humor, such as the SPNKR-X18 SSM Launcher and the TOZT-7 Backpack Napalm Unit weapons in Marathon. Even Marathon’s manual contains the following warning, just opposite the Table of Contents:

Warning:

This manual contains sarcastic language that some readers might find condescending.

This drawing of B.O.B., with his trademark catch-phrase, comes from Marathon’s manual, released in 1994.