Maybe I can shed some new light on this topic.
If you really love the Mega Drive version of Lemmings so much I have a rom that impoves a few things in the original game.
Okay I just released a (bug fix version) of Lemmings today on the Sega Mega Drive. I hacked into the rom using a hex editor and I corrected alot of the typos that the game has in it's level titles aswell as in the ending credits.
I'll go through them for you:
1. Level 4 of Tricky is no longer called ''The Ascending Pillar Scenario'' it is now called ''Been There, Seen It, Done It.''
2. Level 16 of Tricky the level title is no longer spelt ''Lovely Jubilee'' it is now spelt ''Luvly Jubly''
3. Level 17 of Tricky the level title had a typo in which it was called ''Diet Lemmingaid'' it is now spelt ''Diet Lemmingade''
4. Level 16 of Taxing is no longer called ''Umbrella Land'' it is now called ''Mary Poppin's Land''
5. Level 20 of Mayhem used incorrect American English for the title name in which it was called ''No Added Colors Or Lemmings'' it is now called ''No Added Colours Or Lemmings''. In PAL regions (especially Europe) they use the U in alot of words. Neighbour, Colour, Honour, etc.
6. I fixed the typo in the header in the credits to now say ''GRAPHICS DESIGNERS'' it used to be spelt ''GRAPICHS DESIGNERS''.
7. Lastly I put my name in the ending credits just before the SEGA logo washes up on screen.
Wanna play it?
ROM DOWNLOAD LINK:
https://mega.nz/#F!K3pXVQpD!thTf5YaZvBfiuSFgXc1mSQNOTE: This rom will only work in 50Hz, booting it in 60Hz will result in flashes during the actual levels, that is not down to me, the original European rom featured this bug in it. You see the Lemmings (E) rom on the Mega Drive is fully optimised in both audio, visuals and gameplay for the 50Hz refresh rate, playing it on a NTSC system results in a flashing and glitchy screen when playing in a level.
This rom will play perfectly on a PAL SEGA Mega Drive model 1 console aswell as the Analogue Mega SG console. I have tested it on those consoles so I can confirm. I haven't tested on emulators but if it works on real hardware it's pretty much going to work on emulators.
As a bonus if you got an EverDrive or a Game Genie, put this code in the RAW section and you'll get a hidden sound test: 000698:1546 (PAL version only). Just go to Password to get to the sound test.
The only typo I left unchanged was level 10 of Fun: ''5 Miles If You Love Lemmings'' I truly believe that this is not a mistake and that it was intentionally spelt that way, if it was a mistake wouldn't it be spelt ''5 Mile If You Love Lemmings'' considering the 5 is very similar to an S.
Anyway i'm hoping my rom will one day open a gate into more experienced hackers and editors coming forward and learning the code so we can get new levels added into the already existing Mega Drive rom of Lemmings or maybe just to have some levels swapped out in exchange for a few new ones one day? Or maybe even music edits and different art and things like that. I know almost nothing about rom hacking 16-bit Mega Drive/Genesis games and I was able to make a few small changes so who knows? If an ordinary yahoo like me can do something with this game, anyone else can. What rom hackers do with the Sonic The Hedgehog series is what i'd love to see happen with Lemmings on the Mega Drive.