Try to blast the UFO by shooting hearts at it. Hit as many aliens as possible to increase your chances of getting to the next level. The UFO's lifebar at the right of the screen indicates how well you're doing. Use the left and right arrow keys to move and the spacebar to shoot.
Enable Flash in Chrome settings. When Flash is disabled, the label will read " Block sites from running Flash ".Click the toggle to enable flash and the label will read " Ask First ". Shown like the following:
Now Click And then,click " Allow " in the box that appears in the top-left to play the game.Shown like the following:
