Bloon Downgrades are the opposite of Tower Upgrades. They cause bloons to become less powerful (instead of making towers more powerful). They are not available to purchase during a game, but may be purchased from the menu screen. They work in the same basic way as the Specialty Buildings in Bloons Tower Defense 5 - each has three downgrades that can be purchased with Monkey Money (but that also cause a negative effect - from the player's perspective - if all three are purchased). Downgrades to both speed and power (and other types of downgrades when applicable) may be purchased for each type of bloon, but (in a similar way to the Specialty Buildings) only one type of bloon's Downgrades may be in effect during any game. Downgrades cannot be purchased for bosses.