The Tommy-gun Ghost is the ghost of 1920s era mobster.
Decades after his death, the Tommy-gun Ghost began to manifest at his old haunt in Times Square. However, in place of his familiar territory, a toy store was built. Store employees began passing around stories of weird stuff happening at night while some claimed to have seen the ghost. Eventually, the ghost fully manifested and unleashed ectoplasmic bullets on hapless customers and employees. The Ghostbusters were called in to deal with the entity. It opened fire on the guys and flew out of the store. The Smiley Reporter was grabbed by its tentacles but Peter Venkman easily trapped the ghost and saved her.