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|“||Hold out longer than your opponent - no direct bloon sends||”|
Defend Mode is a mode in Bloons TD Battles and Bloons TD Battles Mobile where the player cannot send bloons but can earn income boosts to earn extra Cash. Like all modes, the loser is the player who loses all of their lives first or disconnects from the servers first.
Income Boosts may be bought, which increase income per 6 seconds by a certain amount, depending on type. Each gives a different amount of income and require a different cooldown, though it is possible to buy a different type of income boost while another type is recharging. The types of boosts are listed below:
- Small income boost - Increases income by $2. Cost: $50. Takes 150 seconds to "break even", as in, pay for itself. Cooldown is 3 seconds.
- Medium income boost - Increases income by $15. Cost: $300. Takes 120 seconds to break even. Cooldown is 12 seconds.
- Large income boost - Increases income by $70. Cost: $1,000. Takes approximately 90 seconds to break even. Cooldown is 60 seconds.
- Huge income boost - Increases income by $700. Cost: $7,500. Takes approximately 66.6 seconds to break even. Cooldown is 180 seconds.