Here you’ll find all the +1 OP NINJA codes on Roblox as soon as they’re released to help you level up inside the game! +1 OP NINJA is a Roblox game where you train, fight, and become stronger. Join clans and unlock powerful skills while collecting swords, weapons and auras. Become the strongest most OP Ninja! These Codes give you Free Rewards in +1 OP NINJA such as Free Boosts, and Other Items! Make sure to Copy and Paste the codes directly from this page, or Enter them yours