NES: Ufouria (Hebereke), Japanese Text with a Totally redone script, Character changes and Name changes
SNES: Spanky's Quest, The Japanese version has a Better Title, Better Ending and a Map screen instead of the usual intro (Natsume, Why?)
PCE/TG16: JJ and Jeff (Ken-chan and Kato-chan), Different Text in Japanese, Potty Humor like People ''Doing thier business'' on bushes and poles.
EDIT: Added 1 more,
NES: Yo! Noid (Masked Ninja Hanamaru), Americanized with Pizza references, Sound and Game Engines based off of Wagyan Land 1 and 2 with major differences, Different title, intro, and card/pizza battle text.