Number 12: Crimson Shadow Armor Ninja is a character version of the card "Number 12: Crimson Shadow Armor Ninja".
It appears as a Normal Partner available in Yu-Gi-Oh! Duel Arena, with a default of 3 Rental Points. Its partner ID is P103. It also appears as an opponent at Stage 5-5 under Quest mode.
One of the monsters with the "Number" archetype. A crimson ninja that bears the number 12.
I am no run-of-the-mill ninja! I am the Armor Ninja! And one of the chosen Numbers! These pretenders who call themselves "ninja" are nothing compared to me!
An Xyz Ninja Deck composed of monsters with the "Ninja" archetype. Use "Senior Silver Ninja" and "Upstart Golden Ninja" to Special Summon "Ninja" cards and link that into an Xyz Summon. Also features some Dinosaur-Type monsters for "Ninjitsu Art of Super-Transformation". Rawr!