| Code Type | What They Unlock | Examples | |-----------|------------------|-----------| | | Limited‑time items, event currency, or bonus rewards during seasonal updates | Holiday event keys | | Special Class Codes | Exclusive character classes (e.g., Japan‑only Ronin class for Red) | Pre‑registration Ronin code | | Currency Codes | Gold coins, Snoutlings, Bird Coins, or premium currency | “1000likes” → 100 Coins | | XP & Progression Codes | Experience points, Skill Points, or instant level‑ups | 500 XP for completing first castle | | Crafting Material Codes | Weapon materials, potion ingredients, or upgrade stones | FNDXNRGB111 includes 5 Basic Enhancement Stones |

Obtaining the Blue, Yellow, or Red Pig Keys to unlock specific areas.

The PvP Arena (unlocked after beating the first few chapters) awards weekly chests. Even at lower leagues, you can earn Snoutlings and upgrade materials. The Arena is the most reliable income source for premium currency in the endgame.