Defly.io is one of our coolest .IO games where you fly helicopter into the sky while shooting at the others. Your main objective in this game is to increase your territory. You have to build walls and towers to mark your area as yours. It is possible to get extra points if you hit other helicopters. There are several modes that you can choose in Defly.io: PVP, Defuse and Games. Defly io Unblocked Game becomes harder and harder as you reach a higher level. Because of this, you must have different abilities to survive. There are 32 levels to play and each of them is great fun and keeps you entertained all the time. From level 20 you can use upgrades and superpowers. Have fun with this great game.