Is the information regarding Hayate's loss of memory in the article canon, or even correct?
Lisa was not a character in the series until after DOA3.
Personally, i always attributed Hayate's amnesia to the Dead or Alive 2:Ultimate opening video sequence when him and Raidou clash, sending Hayate flying into a tree.
This page needs some serious updating, but if you play Dead or Alive: Dimensions, that explains the Hayate/Ein story in more detail. Wondersyndrome 11:00, September 1, 2011 (UTC)