The head title of Boasio game tells it perfectly: Snake vs City. Play Boas.io unblocked game after having a short time in tutorial. This tutorial will be really helpful before facing against real opponents. New skins will be unlocked as you complete some achivement in 3 different game modes. Your weapon is surrounding instead of biting this time. Surround any object you can to destroy it. Each object destroyed will help you to grow up for surrounding bigger objects. After end of time, there’ll be a rankings list where you need to find a place in top 3 for counting as a successful iO games unblocked player.