How To Get Secret Slime Rimuru & Evolve Anime Vanguards Update 6.5 Guide

Anime Vanguards Update 6.5 just dropped, and one of the biggest additions is the new secret unit: Slime, also known as Rimuru. In this guide, we’ll walk you through how to unlock this powerful unit, what to expect from the challenge, and what you’ll need to evolve him. If you’re trying to add Slime to your collection, here’s everything you need to know. Also check out our Anime Vanguards Codes & Anime Vanguards Tier List.

How To Get The Secret Slime Portal

The Slime (Rimuru) unit is tied to a brand-new secret portal available in Update 6.5. This secret portal isn’t available from the start—it drops from the Spring Portal Tier 10, and the chance to obtain it is 0.5%. That means farming this portal will take time and luck, so patience is key. Here’s how to farm the portal:

• Play Spring Portal up to Tier 10.
• Each clear has a very small chance (0.5%) to drop the Secret Slime Portal.
• Once you have the portal, you can start the Slime challenge.

How good is the Anime Vanguards Slime.

What to Expect From the Slime Portal

The portal has 20 waves, but don’t worry—it’s not the hardest content in the game. Compared to other secret portals in the past, this one is considered fairly manageable. Having strong units like Sung Jin-Woo can make the run much easier. With proper setup and a decent team, you’ll be able to finish it in under 10 minutes. Things to know:

• The fight itself is straightforward.
• Visual effects can get overwhelming—feel free to turn them off.
• Rewards are not guaranteed—getting Slime at the end is based on RNG, and not all players will receive him even after completing the portal.

Slime Evolution Requirements

Once you unlock Slime (Rimuru), you can evolve him—though you’ll need to grind a bit more to do so. Here’s what you’ll need:

• Anti Magic Mask
• Shamrock
• Green Essence Stone
• Blue Essence Stone
• Red essence Stone
• Rainbow Essence Stone

Interestingly, once you unlock the unit, you already receive the mask needed for evolution. No need to craft it manually.

The Slime unit in Anime Vanguards Update 6.5 is a great addition, especially for Rimuru fans. While the drop rate from the portal is low, the actual portal fight is manageable, making this one of the more accessible secret units for casual players. Make sure to keep grinding Spring Tier 10 until the portal drops, and don’t forget to stockpile your flowers for evolution.

If you’re planning to evolve or showcase Slime, you’re not alone—many players are curious to see what the evolved version can do. Stay tuned for more guides and showcases on the latest updates in Anime Vanguards.