Mysterious Colors
Select which color or number disappeared on the screen.
At the beginning of each level you will see a bunch of colored numbers. After a couple seconds, a group of either numbers or colors will disappear (for example, all the blue icons will disappear). Then you have 10 seconds to examine the remaining icons to try and figure out which color or number disappeared.
Use your MOUSE

As usual you can customize your hero with different appearances before entering in the battle. And your aim is to achieve different missions according to storyline dialogs through various stages. Use "W", "S", "A", "D" KEYS or ARROW KEYS to move around. Hold down SHIFT or CTRL to run. Select your weapon using 1 to 6 KEYS and use YOUR MOUSE to aim and LEFT MOUSE BUTTON to shoot.