I was looking to do a cross between a beatemup and Choplifter with a golden age comic aesthetic. The goal is to create situations where the hero would have to save a civilian and get them to safety. Similar game play would include capturing criminals and dropping them off with police officers. I'd also like to pepper in other situations for the player to handle: stop runaway train, put out fires, etc.
In a perfect world, I would create a whole city where the random events could happen. For example: Your character hears a window washer yell for help while dangling from his platform. You fly to that point of the level but as you get there he falls. You catch the civilian in mid air and deliver him safely to the ground/nearby-ambulance.
Stuff like that.
As far as Flash's bone tool, I've definitely looked into it and think it could be a huge benefit.