Skill based video challenges make up a very broadly categorized genre containing arcade, puzzle, word, trivia and fantasy sport flash games. The result of skill based activities depends on the physical proficiency like quick reaction, dexterity, as well as on mental abilities including logical and strategic thinking and trivia knowledge. A wide variety of pastimes related to this category are available on the net for free. Furthermore, each sub category requires different physical or mental abilities. For instance, the arcade group requires the use of quick fingers, while on the contrary puzzle and word groups are slow paced requiring heavy cognitive use.