Bloons Tower Defense 4 Expansion is a fun bloons game that you can play here directly in your browser. Bloons Tower Defense 4 Expansion is powered by Flash technology to run smoothly in most browsers. Bloons Tower Defense 4 Expansion has received 53,903 plays and has received a rating of 8.6 / 10 by 413 people. Did you like playing this game? Then also try our other bloons games or Bloons 2 Spring Fling and Bloons.