Ninjago Ninja Code. Ninja Code Enter the Digiverse in Ninja Code! The Digital Overlord has corrupted the Ninjago City mainframe. Use the Ninja’s Techno Blades to hack into enemy vehicles and use them as your own. Choose between Kai, Zane, Cole, and Jay to battle the Overlord’s minions. Reboot the system before the Overlord drains Lloyd’s Golden power.