Two boards under each wheel conquers stairs. Come on, man! This was in the fucking orientation brochure. Read your shit!
I'm still sceptical, man. I'd figured that wheel-legs would be some sort of crime-fighter, but he wouldn't be much use when he's hauling his round ass up flights of stairs.
Maybe knife-arm dude can team up with wheel-legs fella, but their differences behind them, for the good of the city.