There's no such word as bus-a-looey!
This is a recreation of the Crazy Bus from the American-Canadian T.V. series, Arthur.
This absolutely crazy bus includes an instance file. To put this in your map, copy the two folders in "main" and place them inside your map's "main" folder. In the map editor, make a new instance. In the node properties for the instance, under "file", locate the crazybus.xml file.
It can be tricky to install vehicles if you aren't familiar with the process. In that case, leave a comment and ask for help. I, or other members of the community, will be more than happy to explain the process in full detail.
Credit goes to @Mudsox for scripting the audio to the bus and the whole idea in general.