Cameron Else also did the conversion of MM to MSX, which has very similar hardware to the Einstein. These both seem to be very faithful conversions of the Software Projects version of MM, perhaps arguably "perfect"? Unfortunately, the MSX port still suffers colour clash. I'm not sure the Spectrum versions of MM had any serious bugs, although there are a few documented engine glitches that are not of any real concern, and "Amoebatrons' Revenge" does have the funny non-conveyor, and I'm never sure if that's intentional. It'd be interesting to know if MM suffers colour clash on the Einstein.
Of course, it was Cameron Else and Ross Holman who won the prize for completing JSW on the Spectrum, having to fix the game in order to complete it. Else then did the ports of MM and JSW to MSX for Software Projects, and also to the Einstein, it would seem.
