AttackAlarm! It's a social game that requires social interaction between players.
     There are three modes——Play alone、Play face to face、Play with facebook-peer. You may pick up one from them. The last two are P2P modes that are peer to peer gameplay, which means that two can play this game.
     Two heads are better than one. The game allows cooperative multiplayer gameplay, that has typically features multiplayer and synchronous gameplay mechanics.
     Different Ability-Type's enemies will attack your land and the map will be wider in the next level(A level has 5 maps). Your task is to build the ideal defense system to protect your land. Build your defense in preparation for the attacks, that need a wise plan with skills and strategies.
     Peer and you have different defense zones. Both of you will divide equally enemies of an attack wave. Destroy and weaken enemies in your zone as much as possible, or they will appear in your peers' device with remaining vitality at the same point when they reach peers' zone.
     If you enjoy intellectual challenges and cooperation, invite a friend to join the game with you!