"This Anime (Episode 2, to be exact), where Rockman travels from the Game-World to the real world, to learn some cultural differences about Japan, was intended to be a Special Episode for the original Mega Man Cartoon Series by Ruby-Spears, which aired around 1995 in the US. As it seems, the special was finished before Ruby-Spears decided to redo their whole show with a completely new design, better suited for American audiences. Thus, not fitting the new style anymore, it never was included in the series. Still, two more episodes about the same story were produced a bit later, this time under the main title "Rockman" (unlike Episode 2, where he's called Mega Man, even in the japanese dub). It's unknown if these 3 Episodes ever saw an official release, until 2002, when Capcom of Japan decided to finally (re)release them on DVD for Rockman's 15th Anniversary (all featuring a Japanese and English dub, but no subs). It's unknown if there are any more secret animated works of the original Rockman game-series."

Remake of the Ninja Hattori-kun series.

Yume de Aetara is a story about one guy Fuguno Masuo (a complete loser when it comes to relationship with women) and two girls: Shiozaki Nagisa and Hamaoka Miho. Since the story is pretty simple (and hilariously funny), further explanation will spoil everything (take the hint: watch it yourself!) (Source: AniDB)

Back on Sonic's home planet, Eggman has collected all 7 of the Chaos Emeralds, and is about to have absolute power when Sonic interferes, causing an explosion that sends everyone from their world to Earth. Sonic and his friends team up with 12 year old Christopher Thorndyke to collect all the Chaos Emeralds and defeat the evil Dr. Eggman. (Source: ANN)