Begin your adventure on a space military base located on an asteroid. Explore the area to locate guns scattered around the meteorite. Collect these weapons to fight against the monsters. Utilize the portal gun to bring in enemies for more action. Aim carefully and attack to take down the monsters. Earn points by completing challenges to move up the leaderboard. Compete with your friends to determine the best player. Watch out for the monsters' movements to stay in the game longer.