Mickey Mouse is a very simplified game of Cricket with a couple of twists. I learned this one while working in Korea and seemed to be the most common game played there.

The Object of Mickey Mouse Dart Rule
The object of the game is to "close" all your numbers (20 down through 12, any three doubles, any three triples and bulls-eye). To close a number, you must hit three of that number.

The Scoring of Mickey Mouse Dart Rule
The scoreboard is drawn with the numbers 20 through 12, doubles, triples and bullseye written in descending order down the center of the board. Bullseye is usually abbreviated with a B (or C for cork, another term for the bullseye). Doubles with a D and triples with a T (in Korea, they call the triples "trebles"). Each dart that lands in any of the games numbers count toward closing that number. The thin outer ring counts as two of that number or counts as one double. The thin inner ring counts as three of that number or counts as triple. Scoring for one dart is shown by placing a slash ( \ ) next to the number scored. Scoring for two is shown by placing an X next to the number scored. Scoring for three is shown by placing a circle next to the number to indicate it is closed. When three of a number is scored in any combination, it is closed.

The Play of Mickey Mouse Dart Rule
The players each take a turn throwing one dart at bulls-eye, closet dart to the bullseye gets to throw first. The first player throws three darts at any of the scoring numbers to try to close that number. The player then scores the darts that he has thrown and play alternates until one person closes all their numbers.

Strategy of Mickey Mouse Dart Rule
There really is no strategy to this game, simply throwing accurate darts.

The only real desicion that can be made in a game is wether to score the doubles and triples as doubles and triples or score them as three of the number you hit. I tend to believe that if I only needed one dart to close the number I score it as a triple. If I needed two or more, I score it for what it's worth. You can also expect that you will be hitting triples right next to the number you were aiming at so you might just want to try scoring all your triples as "splashes".

Some of the better dart players in Korea (there were very few) prefer to play in strict order as the numbers are listed on the scoreboard. This means that splashes don't count and if you hit a triple 20 while aiming at 20's you MUST score it as 20's. This makes for some very LONG games when you get to the triples and doubles sections.

One night a couple of Australians and I decided to try the Korean Mickey Mouse game and play it with points like standard Cricket. This made for a very interesting game when you could score points based on doubles and triples being closed!