There's a kid named Nash behind Chain's bus home who's very infatuated with Linear. He doesn't really like Mag hanging out with her so much. Once Linear gets kidnapped, Nash doesn't see her with Mag one time and thus accuses him of finally selling her to pay off his huge debt.
The cutscene where Pepper is introduced, specifically when she realizes who Mag is... and mentions that she knows because all the adventurers know of the Launcher Family's debt.
The original version of World of Sacred Device has rougher yet humorous facial expression, especially during the scene where Mag and Linear meet Eugene.
Before escaping from the sinking ship, Eugene threatens to take Linear away to escape. Cue Mag's Cyframe Power Fist uppercutting Eugene into the sea.
The look on Eugene's face when he sees Linear's evolutia form. Is he climaxing or something?
He also has a funny look on his face the whole time you fight him on foot. He's clearly enjoying this.
Also from the bar, Mag whining like a little kid when the bartender decides to give him water when you ask for a drink. Pepper gets even more annoyed given that she's an adult and very fond of drinking.
The game's flavor text in general is amusing, given how much of it there is; Chain and Mag's in particular give some interesting insight into their thoughts, including constant annoyance at their shortness.
Inspecting the trash can in Chain's mobile home prompts Chain to bluntly ask Mag if he always goes through people's trash when visiting their homes.
Gre's Lethal Chef skills; Due to the way the game handles attack animations, it means that pretty much every enemy can't help but love Gre's cooking. Even Eugene in his mecha. EvenYurka and the Ulticannon.
