Kamenoko Shuriken

The Kamenoko Shuriken (かめのこ手裏剣, Turtle-Koopa Shuriken) are weapons used by the Mutant Ninja Sentai Nokonokoman. They are normal with the central part decorated like a Koopa Shell. They use them after presenting themselves to Mario, Luigi, and Yoshi. Mario, using Yoshi as a human shield, makes the Kamenoko Shuriken hit Yoshi instead. After that, the Nokonokoman do not use them anymore, instead using their transformation technique.