During Grasshopper's ending, Krista's mole changes frequently from her left cheek to her right cheek and in some shots completely disappears.
In Grasshopper's ending, Krista's eyebrows are black as they always have been, but in a close up of her face during her ending they are suddenly colored red to match her hair color.
During Roadkill's ending, Marcus' mustache disappears in one shot then promptly reappears in the next.