I'm playing "The Girl From Gunma Kai" and it's really fun. The songs are loud but cool.
The game doesn't save your high score, however, and since the game is easy, scoring should be the focus of the experience.
There are also some secret boxes that you need to shoot to unlock certain things, but they are very difficult to see at times. If you're playing to unlock the secret levels and you lose one of them, you lose your entire run, which can be very frustrating.