Oh, it is.

Just that subtle hot that you don't get till you're about halfway thru, and wasn't really expecting it.
There's a huge grocery store near us that is totally asian. I don't get into the cooking from scratch part too much, as normally after a workday I don't want to fuss with all that, which is too bad as they have a fantastic meat and seafood deli. But they have a lot of interesting prepackaged things, and noodle bowls are a.. prolific item there to say the least. Usually they have some kind of 'hot' indicator on the packaging, but this one has very little words of any kind in poorly translated english so I really didn't have any idea how strong it'd be.