The second in the Game Boy Mega Man series was released only two months after the original, in February of 1992. It's also the only game in the franchise developed by Biox and is generally considered one of its weaker entries, for reasons that will become clear as we play it.
Still, it's more entertaining than Mega Man III on Game Boy, a game which intentionally seems to be designed to be as asinine and frustrating as humanly possible...