Astro is a casual game set in the mysteries of space where you are stranded on a planet and aliens are trying to kill you! But look out, your own bullets can come back around to kill you! Fight waves of unique aliens and bosses with the aid of power-ups. Use special power-ups such as the Golden Bullet that kills everything in its way or just nuke the entire map. Challange your friends by comparing your highest wave and share cool screen shots using the View Mode feature!