Bonsai, the Black Ninja is a Ninja minifigure introduced in 1998. He is the most common minifigure in the Ninja theme, although he was later surpassed in number of appearances by the Ninja from Ninjago.
- 1185 Mini River Ninja
- 3017 Mini River Ninja
- 3345 Black Ninja and 2 Robbers
- 4805 Ninja Knights
- 6045 Ninja Surprise
- 6083 Samurai Stronghold
- 6088 Robber's Retreat
- 6089 Stone Tower Bridge
- 6093 Flying Ninja Fortress
- 4850307 LEGO Battles
He is mainly black, but has some gold and silver designs on his torso. His eyes and eyebrows are entirely black. He has a yellow head which is the same colour that most minifigures have.
- In 4850307 LEGO Battles, black ninjas are hired by Governor Broadside to destroy Captain Brickbeard and King Kahuka.
- They appear in LEGO Universe.