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- Not to be confused with the similar Bloons TD 5/Bloons TD 6 upgrade for the Monkey Buccaneer called Destroyer.
- Not to be confused with the Bloons 2 level called Battleship.
Battleship is the fourth and last upgrade for the Monkey Buccaneer in Bloons Tower Defense 4. The description of this upgrade says "Total nautical domination" and causes the Monkey Buccaneer to shoot three times as fast. This upgrade is the BTD4 version of Destroyer.