Someone awakens the demon and it is now wrecking havoc all over the lands. You know that something is wrong, so you decided to investigate and put a top to the evil. The idea here is to kill as fast as you see you enemies. More would come and you need to get rid of them as fast as you can. The game gets harder as you make some progress, so you need to buy better guns. Each level would be a survival mode since you need to get every last bit of them. Collect some money since you would need it to buy better guns.