I just finished cleaning the subway ramp on my Dr Who. When I bought this machine it was advertised as extremely clean. Well, the top of the playfield was, but the bottom is filthy. I also have to clean every insert out with a q-tip as the same kind of dirt is sitting there as well. Time to make this sucker glisten with cleanliness! Simply use Fantastic cleaner to get the grime off, then Novus 2 plastic cleaner to shine it up.
See the before and after photos.