Nah, not in the human body, though I see why you get that feeling. And one level in particular has indeed a deliberate organic aspect. It’s a series of caverns and it’s all about unraveling the mysteries of yet another dead-and-buried civilization.
That said, I found its lore had a lil something of being its own thing. It didn’t cross my mind midgame that its backstory was thinly generic, an impression I had with AER. It is more psychedelic too. Funky beings living down there.
So basically, you’re flying around, reactivating machines that will open new routes, collecting rare artifacts hidden behind corners, and following tracks of floating luminous dots that will allow you to buy upgrades for your… flying yourself (what are you exactly in this game? Doesn’t matter actually, I’m fine with this being a mystery). Faster turns, increased speed, yada yada, others purely cosmetic. Those are the nicest, given it’s mainly a visual experience.
The diziness-inducing part is that - hence the title - all the interconnected worlds are set inside spheres, with gravity pulling outwards. So “looking up”, you never see the sky; you see ground upside down on the opposite side of the sphere.
The flying feels good, the controls are fine as far as I remember, but swift fluttering will often end prematurely with a violent collision. That because of how disorienting the setting is, and because you occasionally have to maneuver in narrow (vein-like, yes) tunnels. Hitting a wall doesn’t necessarily mean it’s game-over-try-again, mind you. This is not Superflight. It just breaks the flow somehow, which can sure be frustrating.
On the helping-hand side, each area has a set of observation platforms, like a perch you can easily land on. Just press a button. This brings the roller-coaster to a halt and (may) allow you to figure out where you are and plan your next moves.
Flying isn’t really peaceful in InnerSpace. Compared to AER’s free spaces, this one is more a memory/maze game. Much more demanding in concentration. Losing my way in there was both a fine and an unnerving experience.
It’s a strange mix. Kind of an unresolved battle between easygoingness and tension/vertigo. But maybe that’s exactly what’s interesting in it.