Video games may range from simple arcade-style games to the highly detailed and highly functional graphics of today’s top-selling console systems. Many gamers spend hours just trying to complete one mission without fail to advance to the next level of the game. Many popular game genres include action, strategy, RPG, racing, fighting, shooting, sports, and simulation. These genres each have several sub-genres as well. For example, racing games have a genre of their own, while fighting games feature punches, kicks, and strikes as a form of combat.