The game was created in only 6 weeks, since David Crane reused most of the elements of another game he was developing, Car Wars. When you have reached enough energy, you can finally face the demon Zuul. Once the car is ready, your ghostbusters can start driving across the city to find the ghosts and collect them. The gameplay is simple but addictive: you have to set up a ghost busting franchise in the city, starting from buying the car, choosing from the 4 available, and then equipping it with gadgets such as traps, ghost baits and marshmallow sensors. The game was designed by David Crane, the creator of Pitfall and one of the co-founder of Activision. It was also ported to several consoles including Atari 2600, Sega Master System and NES. It was released the same year of the film on several home computers, including Commodore 64, Apple II and MSX. Ghostbusters by Activision is a video game officially based on the 1984 Ghostbusters movie.