Executive Meddling: The changing of "The Geek" into a girl, from the fairly standard male nerd design he had in the Series Bible, because the executives wanted a major female cast member. In fact, the executives suggested turning Max into a girl. In regard to the firearms, however, it worked out better; in lieu of handguns, the two used bazookas, flamethrowers, and tanks at the drop of a hat. Word of God was that this was a change for the better.
The Narrator/Monsieur Papierwaite is also TychoBrahe. He was also Max in episode 101, so in a way, Max is sitting across an incarnation of himself at the poker table, and of course results in Talking to Himself whenever Max and Tycho converse.