I spent YEARS playing the Spectrum version of Ghostbusters! I used to pick the slowest car, get 4 traps, the PK detector, the Image intensifier, the bait and the ghost vacuum, and have about ?400 left. If you went over the ghosts on the main map, you got to suck them up with the vacuum while you were driving. Then the Marshmallow Man thing at the end. MAN that was ace!