Gettag, in the context of Mugen, typically refers to a character designed to mimic or represent a specific entity or concept, often with humorous or satirical undertones. Without specific reference to a well-known character named Gettag in mainstream media or Mugen's official character list, it's plausible that Gettag could be a custom or fan-made character within the Mugen community.
The "tag" portion of the name suggests a failed attempt to implement (similar to Marvel vs. Capcom ). While the original creator never perfected the tag system within the buggy Mugen 1.0 engine, the name stuck. Today, "Mugen Gettag" broadly refers to any Mugen compilation that: mugen gettag
name = "Ryu"