What is xmegadrive?

xmegadrive is not a widely known or documented term, and there is no universally recognized definition. It likely refers to one of the following:

A Homebrew Sega Genesis/Mega Drive Project: "xmegadrive" could be a custom name for a personal or small-group project related to developing games, emulators, or hardware modifications for the Sega Genesis/Mega Drive. This is the most likely possibility.
An Obscure Emulator or ROM Hack: There may be a little-known emulator or ROM hack that uses "xmegadrive" in its name. However, these are often short-lived and difficult to track down.
A Typo or Misspelling: It could simply be a typographical error, possibly intending to refer to "Mega Drive X" or a related term.

Because the term is not clearly defined, further context is needed to understand its intended meaning. You might have to search forums or communities that focus on Sega Genesis/Mega Drive development, emulation, or ROM hacking, with the following important subject links:

xochitl