From a minor rumble between Hooligans and Street Heroes, to a full-blown Alien Invasion, there always seems to be... Ugliness left over when the victors go off to have Shwarma and Beer.
I propose some discussion about maintenance, rebuilding, and washing away the bodily fluids that get splattered all over.
What happens after 'Super-Strong-Guy' bashes the 'Hive-Queen' with that handy Tour Bus that someone left parked by the side of the street? Beyond matters of financial responsibility, does the city have a Recycling Program able to deal with a trashed and smashed Bus? Who handles the 'Wierd Stuff' found in the wreckage of the crashed starship? We're a long way from Area-51!
Is there a 'Super Crew' to rebuild the shattered roadway and infrastructure?
What about the Fire Department? Given Titan City's history, TCFD must have some seriously significant support. What capabilities have they developed? What sorts of incidents can they respond to? What does the City do on May 4 - International Firefighters' Day?
What would you expect a City of Titans to be able to do, to Clean Up the Mess?