Click, tap, or press any key to lift the health bar. Customise your health bar, a hit from a red square will cause 1 health to be lost, if you lose all 5 health bars e.g. by hitting a black wall the game is over and restart automatically. Move through the blue lines to score a point, or collect blue circles to score 2 but beware they damage shields. Total points and other stats will be shown when all your health is lost