It Lives by Night/YMMV

"Mike: Oh, he was also bitten by an Ecuadorian bald-faced monkey."
 * Narm: John's sudden, violent and extremely goofy looking seizures.
 * And in general, the fact that what being attacked by a bat turned Johnny into... well, something that looks far more ape than bat, but they were probably going for bat... man.


 * Either that, or the classic Wolf Man makeup with a spear nose. Eh, it was Stan Winston's first feature film credit, so we'll cut him some slack.
 * Special Effect Failure: See Narm above.
 * Squick: Bat bombardments.
 * Also a case of Artistic License: Biology, because the bats splat on his windshield like bugs. BATS AREN'T BUGS!!