I just went through the Robo Fairy museum in the game's Wii U version and encountered two bugs.
First, some of the buttons on the third floor didn't trigger their corresponding sounds the first time I stepped on them. And no, there were no other sounds already playing while I did that.
But the real problem is what happened when I got up to the fourth floor. Upon doing so, the game made a loud beep for a few seconds, then froze my console. I had to hard reset it to get out of this.
Worst of all, upon doing so, I was horrified to discover that I had just lost hours of progress. Apparently, the game doesn't actually save anything until closing. Is this an inherent limitation of Wii U applications? If not, this is a really poor design decision.
Afterwards, I headed back to the museum but thankfully encountered neither of these bugs this time around. So I guess this only happens under rare circumstances. Regardless, if anyone is still playing this version, make sure to close and relaunch the game before going to this place.