alt Hacker NewsHongkong has an extensive mini-bus network -- the green tops (regularly scheduled and more tightly controlled) and the red tops (the wild west). Also, Tokyo runs mini-buses in the (richest) central core between areas that don't have connecting subways & trains.
What is the difference between the red and green tops? In my experience the green ones are kinda wild as well, stop and go anywhere, super interesting. Too bad my Hongkongnese sucks.
Edit: Bisrepita shared the info: https://en.wikipedia.org/wiki/Public_light_bus