The F-Bomb is the occasional use of the swear word "fuck" in the comic, usually saved for moments of extreme emotion. Since it's considered a severe swear word, it is rarely used, at least uncensored. It first appeared in the comic on December 1, 2001 during the Attack of Mynd storyline. Mega Man had just been sliced in two easily by Mynd, prompting the apt one-word response from Roll. Early on in the comic, Dave was originally thinking of having Mega Man use the F-Bomb while The Yellow Demon was regenerating (he was fighting him/it). However, he ultimately decided against it[1]