Those monsters will be zombies. They are of many kinds and they'll try to convert you in one of them. During the game you'll find lots of them, some levels are easy, but other ones are really difficult, because te number of zombies attacking you increase more and more. Simply amazing.
Take part in the great battle to rescue humanity and find out what's happening. This time scientists could not cope the imminent threat and became monsters themselves. Crowds of zombie people filled the secret research base. The dreadful contagion is about to spread worldwide and you are the only one who can stop them.
Fight your way through contaminated hordes using up to10 types of weapons. As long as you go further you'll improve the character’s skills. If you like action and zombie games, you'll like this one. Graphics are good, zombies are always there and your weapon will be always on fire. Anything else?