Conversions for the Atari 8-bits and Amstrad CPC made most likely by the same team - no conclusive documentation found so far. Released in 1986 through Mastertronic's MAD label.
Enhanced version designed and developed for the Commodore 128 by the original team, and released by Mastertronic in 1986.
Since I finished this month's planned entries in such a good time, I decided to do another quick one. I chose to do a comparison of one of the most notoriously difficult games ever released by Mastertronic (or more specifically, their sub-label MAD) because it's one of the rare games that were also released for the Commodore 128 to be played from the machine's native state.