Ninja may refer to:
- Ninja Monkey, a tower that can see Camo Bloons.
- Ninja Kiwi, the company that makes the Bloons franchise.
- Ninja Abode, a building that unlocks the Ninja Monkey
- Ninja Dojo, an upgrades building in BMC
- Ninja Academy, a Special Building in BTD5
- Ninja Kiwi Europe, a branch of Ninja Kiwi
- Ninja Saboteur, one of the Golden Bloon powerups in BSM2
- Ninja Discipline, an upgrade that allows Ninja Monkeys to attack faster and attack further.
- NK Coins, the premium currency for Ninja Kiwi games
Community content is available under CC-BY-SA unless otherwise noted.