Bubble Tanks Tower Defense

Description: This game is one of strategy game. Bubble Tanks Tower Defense has all towers start from the same initial tower, 7 enemy types, over 11 unique tower paths, and 52 whopping game modes. On the game grid, you have to place tower combinations to fend off enemies, destroy all enemies to take bubbles to upgrade tower and get a high score.

Instructions: Use your mouse to play Bubble Tanks Tower Defense. If you are a player’s experience, you should use hotkeys:
T key to place tower.
S key to sell a tower.
P key to pause this game.
More detail, there are instructions and full tutorials.