Support from Konami of Nintendo's handheld Game Boy console came quickly, and with titles from recognizable franchises early on. Castlevania was the first of such franchises, releasing right around six months after the platform itself. Being the first real mainstream portable system, the early days of the Game Boy were a bit of a wild west. A lot of the releases tended to not be optimized for portable game play in one way or another. Castlevania: The Adventure/Dracula Densetsu didn't necessarily have that problem so much as it seemed to have been designed by people who didn't really understand what qualities made the previous Castlevania games good. Or at the very least, their appetite for trying something new and different with the series was just a little too great.