Siliconera's Spencer Yip picked up a copy of Oshiri Kajiri Mushi Rhythm Lesson DS, possibly the only game this year on the DS about learning rhythm from a cartoon bug who bites people in the rear to help motivate them. He has written up some details of the rhythm gameplay found in the single-player Rhythm Lesson mode. Unsurprisingly, the game isn't a revolution in anything but concept, but it does sound like a cute multi-instrumental rhythm game.

The many instruments are played identically -- by tapping on the screen in response to audio and visual cues. Said visual cues include the Butt-Biting Bug flying towards groups of stars; when he contacts a star, the player is to tap the screen. Successful taps increase a meter, which, when full, triggers a butt-biting vignette. The lessons unlock special games like the voice-training lesson, in which players actually sing into the mic.

We're still a bit flabbergasted that the weird song about biting butts became popular enough to support a game, which is now a real thing that someone bought.

Hey kids, Namco Bandai's Taiko Drum Master: 7 Islands' Adventure isn't just about providing us with a source of rhythmic, touchscreen-tapping goodness -- according to the latest batch of screens from Famitsu, it also happens to feature some pretty neat cameos.

The Butt-Biting Bug to the right there is just one example of this, but it looks like we'll also be treated to cast members from Doraemon and The Idolmaster. Rhythmically tap your way past the break for more cameotastic shots!