Arcade games involve quick fingers and quick thinking. These games are basically sped-up puzzle games. Arcade skill games include such games as BrickOut, Bejeweled, Diner Dash, Zuma, SwapIt!, Big Money, Blockwerx and Luxor.

Arcade games were made possible by the invention of the computer and other electronics, and are pretty easy to recognize, including early games such as Pong, Asteroids, and Frogger. You can trace their roots farther back, though, to pinball machines and other mechanical skill games.

Arcade skill games are largely a test of hand-eye coordination, and many don't involve a lot of strategic thought or use of other skills. They're usually fairly simple in nature, as far as the goal you're attempting to achieve, and often mix in other elements of games of skills, especially puzzle solving elements.

While arcade games probably require the least amount of "skill" of all the skill games, you can't watch an expert player at work and try to claim that there's skill involved at all.