A Corny Voyage
Technically, you could call this a racing game. And, if you really want to spin it a certain way, it's also a quick lesson in human anatomy. Kind of. You're an undigested corn kernel trying to get out of a human body intact and as quickly as possible. As you might've guessed, a few--how shall I put this--obstacles get in your way. Hurtling through the intestines, you pick up speed, and the roadblocks are many. You can survive a couple close brushes; hit the sides one time too many, however, and you're in it, deep. Yeah, classy. You know what, though, if you convince yourself that you're flying through a cave and that...stuff...is...umm...space sludge, this would still be just a plain ol' fun game. But with big, brown barriers.
Note: The vendor's site uses language that some readers may consider vulgar.