"X Defense" is a simple defense game.
All you need to touch the screen to prevent the enemies go to the center zone.
There are 2 modes for you.
1. PRACTICE MODE : Play for fun, when you lose, it will be continued.
2. RANKING MODE : Play to get your rank in the world. When you lose, you must play from level 1
Let's try with PRACTICE MODE before you start RANKING MODE