Ninja

Ninja refers to one of the following:
 * Squinja gear:
 * Squinja Mask
 * Squinja Suit
 * Squinja Boots
 * Rise of the Teenage Mutant Ninja Turtles-themed Splatfests:
 * Raph vs. Leo
 * Mikey vs. Donnie
 * Raph vs. Donnie
 * Mikey vs. Donnie
 * Raph vs. Donnie