Yup, you're right. The only offiicial versions of Guzzler so far were the arcade and the SG-1000.
My MSX port is heavily based on the SG-1000 one, but I added many more mazes, new graphics, better sound and some gameplay improvements. Buy I would say 70% of the gameplay is identical among both versions, so just get the SG-1000 version and enjoy it with your Everdrive.
I might consider creating a new SG-1000 version with the new improvements from the MSX port. It's just a matter of expanding the 8K ROM to a new 16K one (that is still supported by the Sega console).
Yes, creating a new SG-1000 version is a good idea, maybe also some more colors could be added, but I don't know, how many this very old console can handle, at the same time?
If you're thinking about new ports of the game anyway, then maybe also a new Master-System port would be conceivable (it could have improved graphics then, because the SMS is technically a bit stronger) or perhaps also a C64 port, that would be really cool too. Or a Amiga-500 port of the game, this could even have the same graphics, the Arcade version has. Just suggestions of course. :-)
The SG-1000 port exists already so it would be very straightforward (just adding 8K more to the ROM to store the new mazes and pattern styles).
I've just purchased a new Commodore 64 Ultimate (still waiting for it to be shipped) so porting Guzzler sounds like a good idea for my first project on such computer.
A C64-port of "Guzzler" would be very nice indeed. Many good new games have been released for the C64 in recent years, including some truly excellent new ports of Arcade classics like Donkey Kong, Galaxians, Burger Time, Berzerk, Galaga, Lock 'n Chase, Donkey Kong Jr., Pac-Man, etc. Guzzler isn't available on the C64 yet, would be fantastic, to have this classic available there as well.