Use your mouse to move the pointer/cursor around the level. Avoid hitting by pixels and don?t touch red bars or circles.
Shield
When the black bar at the bottom of the screen will full up, a text will appear above it. That?s when you know that your shield ability is ready to use. Simply press SPACE and watch pixels as they bounce off of your shield. But be careful, it only lasts for a few seconds. After using your shield the bar will reset.
Hearts
Hearts are displayed in the upper left corner of the screen in training and arena modes. They indicate your lives. In the arena mode you start with one heart and you gain more (up to 4) as you progress through the game.