"We wanted to bring something new to Bubble Bobble beyond a straightforward 3D update. With the PSP, we have its raw power and we've channeled that into creating a deeper, more complex take on the Bubble Bobble concept," says Tony Byus, producer of Bubble Bobble Evolution. "This isn't Bubble Bobble as fans of the series are used to. This is an entirely new game and with these puzzle elements included, it is literally an evolution of the original game design concept."
Yeah I know its off-topic, but who DOESN'T like Bubble Bobble!?! ;)