When Tillie is run off the road by another cyclist, Niko asks if her leg is okay. He does not ask about the front left side of her head which was bleeding after she fell, but now is no longer bleeding.
When the FBI agent wields and swings the ax it makes a 'swishing' noise. There would be no such noise.
Tillie tells Niko she knows someone who is "Roma Gypsy." These names are redundant.