What does "Something's Coming!" mean?

[Kurtino]

I don't think I saw anything about this in the tutorial and I have no idea what this warning means. A red popup that appears every so often while I'm playing with alarms blazing but nothing ever happens.

[Pckables]

It just means there is a large moving object nearby that'll knock your Katamari off-course.
It's a bit excessive of a warning.

[Titler]

Originally posted by Pckables:

It just means there is a large moving object nearby that'll knock your Katamari off-course.
It's a bit excessive of a warning.

That's what it's supposed to be, and is in the original, but I'm pretty sure here it's buzzing for random scenery instead, I've seen it give me warnings for boxes and cabbages and all kinds of stationary objects...