Character sizeCharacter size depends on the chosen screen resolution and game genre. Some genres have standard character sizes. For example, in platformers, characters are typically 10-20% of the screen height, whereas in fighting games, they are around 45%. You can read more about this in
our article on design documentation.
Character size can also be affected by the need to display facial features and emotions in sprites. If a character is too small, this may not be possible.
A basic rule is that the larger the character, the more detailed it is, and the more frames are required for the same animations compared to smaller characters. However, animating extremely tiny characters can also be challenging because maintaining the readability of individual elements requires subpixel animation technique - a technique that simulates pixel movement at distances smaller than one pixel.