What are some good examples of mechanical arcade games? Proper names are preferred, but even general descriptions are good. I'll start.
A common example of a purely mechanical arcade game (no electrical current used) is the coin-flipping game. You enter a coin (usually a quarter) which then enters the game itself. Using spring-loaded levers, your goal is to flip the coin past pits. If the coin lands in a pit, then the quarter is lost and the game is over. If your quarter makes it past all of the obstacles to the end of the game, then one of the last pits is the winning pit. If you can land the quarter into the winning pit, then you win a prize.