...if not very fast-paced. Are they playing for the fate of the planet? To resolve a turf war over various segments of the timestream? For custody of Sully?

Or is it simply that they can have their respective plans in motion without needing to be so nasty to each other all the time?

Whatever the case, by the time Victor dons the purple suit Emmet will have foiled his first-pass scheme at world domination AND upgraded TIM/TAMS (Transplanar Instrumentalized Mechanism for Temporal Anomaly Monitoring & Securing) so Victor can't drop by without asking permission first (or bring any of his friends). Some other visitors from out of time may still pop in though.

At least the furniture lets them see eye to eye. Emmet does have a Cool Science Chair with lots of gadgets built in but he's not going to bring that out while his arch nemesis is visiting.

Artwork by  inklop!

 a-kitsune helped me finally figure out what TIM/TAMS stands for.