As mentioned previously, stereotyping not only occurs in regards to how people perceive other people from different nationalities, appearances interests, etc.; but also in how people perceive almost anything, including in particular things such as imagery and visual stimuli.
Although not focusing on stereotypes in particular, Crow does mention how certain types of imagery can invoke stereotypical attitudes, and how certain aspects such as colouring & patterns can move the viewer in a certain psychological direction.
Indeed, many forms of media & entertainment (again, including video games obviously) deliberately utilise stereotypes in this way in order to move the viewer in a certain direction (figuratively speaking). Visual forms are used with the idea of deliberately fitting to a particular stereotype as it helps to keep the viewer interested & helps them understand what is going on, as well as setting moods and tones for environments & situations (such as using dark & muted colours & shadows for areas which are supposed to be scary or at least put the viewers on edge; or using things such as images in the environment such as posters & paintings to give the idea of what the world is like that is being shown, even though ordinarily it would be advised that such images & visuals should in fact not be used to form such a generalised opinion.
This obviously applied to characters as well, (If a character is meant to be ‘heroic’ or ‘evil’, their appearance will often be created to grant this impression to the player.) & games developers will often create characters to deliberately conform to a particular stereotype so that players will find their behaviour ‘acceptable’ for the character.