A new Game Boy title, or is it?
A visitor to BMUG, Sean Howard, pointed out that BMB is not really a BM game at all, and there is a distinct reason why it looks and plays so much like a Bomberman game.
"Don't know if you knew this, but in Japan, Blaster Master Boy was called Bomber King 2. A sequal to Bomber King for the NES. I think it was released here as Robowarrior by Jaleco.
Anyway, Bomber King was part of the Bomberman series, designed to be more adult to appeal to mech lovers. Anyway, just thought you'd like to know that Blaster Master Boy was originally a Bomberman game."
So in reality, Blaster Master Boy is actually based on the game package used by Bomber King 2 (BK2). BK2 was produced and released in Japan by Aicom Co. Ltd. for the Game Boy (not surprisingly, this is the same company credited for the development of Blaster Master Boy). The only difference is the title screen: everything else is a dead ringer for BMB. It even retains the same cheat code (move bubble over Continue, press A+START and select any period/stage you want).
It could be speculated that since the main character looks like Jason from BM, and to cut down production time, all would be needed is to create a new title screen, box and manual. With this, Sunsoft had very quickly added another title to the BM line-up.