Sometimes fall down at a flat place

Even if I dance, I don’t fall down.
But I sometimes fall down at a flat place.
I’m worried whether you cause split in a screen.

Do you know the cause?

I’ve noticed that EMO will sometimes fall over when he is NOT on a firm surface.

He is fine on a hard table top, but if he is on a soft or springy surface he can over-balance and topple over.

I don’t think this is a problem as he was designed as a “desk top pet” which is a hard surface, so operating him on an untested surface will produce results outside of his tested operating environment.