The Slime Demon is a Rimuru Tempest-inspired weapon added to Anime Final Quest on Roblox. It arrived as the headline addition in the Slime Demon + Cyborg Evo update and brings a three-skill moveset plus a chargeable ultimate. Here is exactly what it does, the trait that pushes its damage, and how you actually obtain it.
Quick answer: Open the Weapons menu with the K key (or the Weapons area in the lobby), then use Normal Spins or Lucky Spins bought with dungeon currency to roll the Slime Demon. Its ultimate fires once the meter is full by pressing G.

Slime Demon weapon moveset
The Slime Demon uses standard M1 attacks for its basic combo and layers three named skills on top of it. Skills map to the game’s skill slots, and the ultimate charges through combat before it can be triggered.
| Ability | What it does |
|---|---|
| M1 combo | Basic melee attack chain |
| True Beelzebub Attack | Named skill move |
| Lightning’s Feast | Fast-hitting skill |
| Weakened Gluttony | Beam-style attack |
| Ultimate | Full-screen finisher, triggered with G when charged |
The ultimate meter fills as you clear waves of enemies. Once it is full, pressing G plays the ultimate animation and lands its damage. You know it worked when the awakening animation triggers and the meter resets.

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Add to Google Preferences →Superior trait bonuses
Traits are rolled separately and stack on top of the weapon. The Superior trait is a strong roll for the Slime Demon because it improves cooldowns, damage, and crit chance at the same time.
| Superior trait effect | Value |
|---|---|
| Skill cooldown | -35% |
| Skill damage | +20% |
| M1 damage | +20% |
| Critical chance | +15% |
How to roll for the Slime Demon weapon
Note: Rerolling a trait is a separate action from rolling the weapon itself, so plan your currency for both if you want the Superior trait.

Slime Demon + Cyborg Evo update contents
The Slime Demon shipped alongside several other additions in the same update, dated 8th August 2026. Here is everything that came with it.
- Slime Demon weapon
- New raid boss
- New raid shop
- New title
- Cyborg Arm cosmetic evolution
- Cyborg Arm cosmetic evolution skill (known to be inconsistent for some players, with a fix planned)
In hands-on play, the Slime Demon reads as a strong all-round option thanks to its beam skill and quick-hitting Lightning’s Feast, though it doesn’t top every current meta pick. If you land the Superior trait, its lowered cooldowns and stacked damage bonuses make the moveset noticeably more aggressive during wave clears.






