Beatopia is an in-development miniature drum-machine crossed with a fast-paced futuristic city-building sim/puzzle. Different buildings provide different functions in relation to money, pollution or crime, while adding different sounds to the rhythm of your city.
After a month or so of experimenting with the concept, I re-implemented the "bass cannon". This activates when the player taps/drags a rioting section of town; it uses Energy and takes out some of the local Population but it sounds/looks sweet and stops the riots from spreading and taking your buildings out.