Play Bloons Tower Defense 4 online at Friv 4 School, which is a strategy game. BTD4 is the 4th game of Balloons Tower Defense game series. The game is improved with new tracks and very good graphics. There are few upgrades which you will reveal while playing this game. First of all, choose the tracks where you want to play. And later stop the bloons reaching the way out safely. You can play BTD 4 in three difficulty levels. If you are new to this series start playing it from easy and after practice, you can enjoy Medium difficulty level. But there is a level for experts too. BTD 3 and other previous parts of this game are also available at our homepage.
Game Controls: Use your mouse to play Bloons TD 4. Click and deploy the monkey and other tools and characters.