An animation in case of games, which uses characters to drive the story is not a simple tool to decorate a game scene and to make it attractive, but it is a way to express the game mechanics. A character moves his legs not because it looks realistic and nice but because this demonstrates the idea that the character can walk as do ordinary creatures on the surface of the Earth. In other words, he obeys certain rules familiar to the player. Otherwise, the player has to invent new interpretations of what he is looking at. For instance, there is a character whose graphic representation has legs, but there is no walking animation sequence in the game, causing the legs to appear still. So, the character's movement on the game board can be read as sliding or floating rather than as walking. This is a problem because such a process has its own physical features in the real world, which differs from normal pedestrianism.
For example, the sliding implies longer and more uncontrolled...