The USA is in danger – there are so many horrible creatures trying to sneak inside! However, you work at the border control and your duty is to keep the monsters away from your motherland. There are so many of truly nasty guys here – zombies, orcs, and other enemies will try to cross the border. However, being tough and attentive, you will prevent this! Use your fighting skills, speed, and overcome the opponents that will get closer and closer. There are six different maps to check out, so you will wander around them and different enemies will meet you on every field. Be ready for everything!