Hmmmm, I think Gachinko was better. But the song does grow after a few more listens and I love the "Honto?" and "Ehhhh??!" parts
So who knows, with the PV it might get even better. I'm still gonna be getting this since I've gotten all the BUONO releases so far.
Though I'm sad that it'll be their last. @nachdenki: Thanks for the mp3.
Edit: Ahhh I'm so sorry. I must have been mistaken about the single being their last. Thanks for letting me know.