Giant's Revenge (1984)(Thor Computer Software)[a][Grid Code Protection] ROM Download for ZX Spectrum (TAP). Giant's Revenge (1984)(Thor Computer Software)[a][Grid Code Protection] game is available to play online and download only on Roms Games. Giant's Revenge (1984)(Thor Computer Software)[a][Grid Code Protection] ROM for ZX Spectrum download requires an emulator to play the game offline. This Game is English (USA) Version and is the highest quality available.