You have been paid some cash and sent to an unknown planet to clean up the mess after a top secret project that went wrong somehow. Now you have to face the unknown aliens of this planet who will be attacking you. There are several missions in this game which you will need to complete. In your first mission, the alien you will be facing is named as ARAKHNOTELIS. This is a three legged crawler type alien. These creatures are the lowest type of the aliens you will face. They are slow, obese and terrible at aiming. They have weak bodies and are easy to kill. But they are dangerous in numbers. They make an excellent target practice. In the second mission, the alien will be the same but will be upgraded by the damage power, speed and attack accuracy. In the third mission, you will be facing a new alien named as ARAKNOID. This type of alien is related to its cousin the ARAKNOTHELIS. However, it does have a lot faster movement and is harder to kill, due to its low profile, hover and smaller critical body area. They are quite weakly armored and can be easily killed if fired in the head. In your next mission, the alien will be the same but will be upgraded by the damage power, speed and attack accuracy. However, you will be introduced to a whole new alien in the fifth mission. The name of the alien is REAVER which is a two legged prowler. Don’t let this cute dog like small alien fool you. It will quickly jump on you and feed on your brains. They are quick, agile and love attacking in groups. They have good armour and powerful jaws. You have to kill these aliens and blow their holes with grenades. You can upgrade your weapon by earning money in the missions.