Gunfu is a free 2d shooter io game. Control a tank and destroy all of the online enemies. The main aim is to become the top player. Aside from weapons that you are given at the start, you can unlock advanced tools when you level up. Play Gunfu unblocked and remember to choose the right items and avoid every attack! You must survive until the moment when you take over the leaderboard. Otherwise, every achievement will be reset to zero. Good luck!