Bandersnatch was a home computer "mega-game" written by Imagine Software intended for release on the ZX Spectrum. The game was eagerly anticipated by teaser adverts placed in the computer press (see right) throughout 1984. The game would have set a new price point for computer games (£30 vs. the standard rates of the time of between £5.95 and £11.95) and would have required a dongle, presumably to carry extra ROM for data.