What in the world is Kumatomo? Well, you could think of it as Nintendogs with the dogs replaced with smarter, talking teddy bears, and you spend the day interacting with them in different ways. It's not such a weird collab when you realize that Namco is making it. There's a 3DS version and...you guessed it, a smartphone version for auSmart Pass users. Hence the collab with Taiko Shinkyoku Tori Houdai.
The collab is simple; for a limited time, players of the Taiko game will be able to download the theme song of Kumatomo via auSmart Pass and play it. Called 'Oshiete Kuma Tomo', the song is a squeakier, remixed version of Mori no Kumasan (yep, remember that one?). Listen to it here and decide whether you like it or not!
The song is not all you get; there's a special title screen for Taiko as well as special dancers and a teddy bear drum face when you play the song! The song ends with an advert for Kumatomo (hope this doesn't happen every single time you play the song though!)
A Youtube video on the main site shows the teddy bear asking the player what his favorite game is, and you can put Taiko no Tatsujin as an answer too.
