Pop'n Pop is an old and obscure "falling block" puzzle game of sorts featuring various Taito characters (including a favorite of mine... Pocky from Pocky and Rocky [aka Sayo-chan from KiKi KaiKai]). The game reminds me a bit of Magical Drop, but with balloons. A bunch of variously colored balloons slowly move down the screen (Space Invader-style), and you want to clear them with sets of balloons you shoot up two at a time (three or more of the same color, and they pop). So I guess you could say it's all rather Bust-a-Move (aka Puzzle Bobble) as well.

The thing is though, I just don't find this one any fun. Aiming is a pain, the simplicity of it all gets dull quick, and they really pushed a kiddie vibe for its presentation I didn't care for. I'll just stick with Bust-a-Move.