Funny / Mega Man Battle Network
The first game has this moment.
Wily: As soon as I press this button...Bye bye world! [Wily proceeds to prepare to push the button. This involves raising his arm in the air, finger poised, and twitching]
Lan foiling Sunayama's hostage scheme in Battle Network 3 by chucking Mega Man's PET at his head and knocking him out cold. What he says while doing it sells it:
Lan: [chucks his PET] Megaman, attack!
When seeing that Dr. Wily has a statue of himself, Lan kicks it off of a nearby cliff while making a remark about Wily's bad sense of design.
Tensuke getting distresses by a malfunctioning TopMan during his scenario in Battle Network 4.
Lan: So why don't you just apologize? Netbattles are a lot funner if you enjoy them with friends.
Tensuke Whatever happens, I'm still a master top craftsman!
Tensuke I won't just apologize like it was nothing!
In 6, a plumber's Navi loses his tool program, and Lan and Mega Man find it stuck to a Mettaur's head. Lan tells Mega Man to delete the virus, but Mega Man doesn't want to since the program looks harmless and doesn't want to touch it.
Every time the security bots ask to see Lan's ID in the sixth game.
In a subversion of the usual procedures of the game, Falzar/Gregar actually attack Mega Man in the middle of his "Battle Routine, Set!" dialogue.
An NPC lawyer in Green Town who becomes incensed upon learning about a case of dieting scam.