I just recently picked this game up, so I don't understand all the mechanics yet. There were a couple of weird things happening in some of my latest attempts, and I'm not sure if they're bugs or features I haven't learned about yet.

Blowhog constantly blowing fire:

Rainbow graphic?

Those are some fairly uncommon glitches, but basically it’s an actor’s animation being where it shouldn’t be. In the first clip, that’s the animation of a fire geyser from the libra area being used by the blowhog, and the second one is the circle from the SS Dolphin (although I’ve never seen it hover in the air like that). No one really knows the specifics of what causes that to happen.

That's interesting. I first saw it over a blowhog and my pokemon-brain told me it was a shiny. On the way back, the sprite was just there in space. I honestly would not be surprised if this game placed random "super" enemies in different playthroughs with special abilities.