Shuriken Ninja has been sitting in the top five Windows Phone apps for some time now and it's about time we took a look at this popular gaming title. Shuriken Ninja is an ad-supported, free game for your Windows Phone where you play the role of a ninja.

Continued after the break.

Your mission in life is to take out the various targets that are positioned on the screen with your shuriken stars. You have two gaming modes to keep you challenged, Single Star and Round Challenge. Single Star is a multi-level (84 levels!) game where you have a limited number of throwing stars to take out your targets. Round Challenge is also a multi-level game where you have to take out a certain number of targets before time runs out. If you do, you advance to the next level.

With each game mode, the game becomes more challenging as you advance through the levels. Now to throw your shuriken star you simply tap on the screen where you want the star thrown at. Stars can bounce off metallic surfaces but stick firmly into any wooden surfaces.

Settings cover music and sound effects. There are bonus targets in the Round Challenge that will give you boosts such as multiple stars, faster stars, etc. There isn'a an online leaderboard or a help section. I can live without the leaderboards but it would be nice to have a tutorial or help section.

All in all, Shuriken Ninja ran smoothly and I found it to be an entertaining, addictive game for the Windows Phone. You can find your free copy here (opens Zune) at the Marketplace.

Update: Shuriken Ninjas was recently updated to include a level creator option.  You can create as many levels as your hearts desire and even upload them to Clockwork Computing for consideration in future updates.  Check out the video review for more details on this new feature.