Jade and Equius having a robo-competition
Equius making snide comments about Jade’s mechanics.
Jade poking fun at how often he destroys his prototypes.
Equius sabotaging her attempts with a ‘misplaced’ hand, warping the parts.
Jade changing the sizes of his so that they don’t fit together.
Frenetic bickering over cheating; Equius saying that she’s just a lowly peasant that doesn’t stand a chance in he first place and Jade calling him a jealous asshole who’s scared she’ll beat him.