Mutations are one of the most useful ways to make your units stronger in Be the Final Boss. Since the game is about holding the line against waves of heroes, having mutated units can make a big difference during harder runs.
Mutated units get bonus stats, usually improving their attack and health. Some mutations are stronger than others, so knowing which one to aim for can help you build a better team.
Game: Be the Final Boss
Feature: Mutations
Main Benefit: Boosts unit attack and health
Known Mutations: Cursed, Demonic, Shiny
Best Mutation: Demonic
Double Mutation Chance Cost: 159 Robux
Important Note: A unit can only have one active mutation
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All Mutations in Be the Final Boss
There are currently three known mutations in Be the Final Boss: Cursed, Demonic, and Shiny. Each mutation gives a different stat boost to your unit.
| Mutation | Effect |
|---|---|
| Cursed | A unit’s overall attack and health are increased by up to 100%. |
| Demonic | Boosts a unit’s overall attack and health by up to 150%. |
| Shiny | Similar to other mutations, but the bonus is capped at 30%. |
Cursed Mutation
The Cursed mutation boosts a unit’s overall attack and health by up to 100%. This is a strong mutation and can make a unit much better during longer waves.
If you get Cursed on one of your stronger units, it is worth keeping until you can roll something better.
Demonic Mutation
The Demonic mutation is currently the best mutation in Be the Final Boss. It boosts both attack and health by up to 150%.
This makes Demonic the strongest option for your main damage units and tankier frontline units. If you get Demonic on a powerful unit, prioritize using and upgrading that unit.
Shiny Mutation
The Shiny mutation gives a smaller stat boost compared to Cursed and Demonic. Its bonus is capped at 30%.
Shiny is still useful in the early game, but it is not as strong as Cursed or Demonic. Replace it later if you get a better mutation on the same type of unit.
How to Get Mutations in Be the Final Boss
Mutations are obtained through unit summoning and mutation-related chances. Getting a strong mutation depends on luck, but there are a few ways to improve your chances.
- Use the Summon Altar when trying to get better units.
- Wait for Cursed Moon Weather before summoning if available.
- Use Double Mutation Chance from the shop if you want better odds.
- Keep summoning until you get a strong mutation like Cursed or Demonic.
Double Mutation Chance Cost
The Double Mutation Chance item can be bought from the shop for 159 Robux. This helps increase your chances of getting mutated units.
| Shop Item | Cost | Use |
|---|---|---|
| Double Mutation Chance | 159 Robux | Increases your chance of getting mutated units. |
Can a Unit Have More Than One Mutation?
No, a single unit can only have one active mutation at a time. This means you cannot stack Cursed, Demonic, and Shiny together on the same unit.
Because of this, the goal is to get the best possible mutation on your strongest units instead of trying to stack multiple mutations.
Best Mutation in Be the Final Boss
The best mutation in Be the Final Boss is Demonic. It gives the highest overall stat increase by boosting attack and health by up to 150%.
Here is the simple ranking:
- Demonic: Best overall mutation.
- Cursed: Strong mutation and good backup option.
- Shiny: Useful, but weaker than Demonic and Cursed.
Which Units Should Get Mutations?
Use your best mutations on units that already have strong base stats. A high-tier unit with Demonic or Cursed will usually perform much better than a weak unit with the same mutation.
Prioritize mutations on:
- Your main DPS unit
- Your strongest frontline unit
- Units with high attack scaling
- Units you plan to use long-term
Are Mutations Worth It?
Yes, mutations are worth it because they can heavily boost a unit’s attack and health. In a game like Be the Final Boss, where stronger heroes keep pushing toward your base, extra stats can help your units survive longer and deal more damage.
Demonic and Cursed mutations are especially valuable because they provide large stat increases. Shiny is weaker, but still useful if you are just starting out.
Final Thoughts
Mutations are one of the best ways to strengthen your units in Be the Final Boss. The three known mutations are Cursed, Demonic, and Shiny.
Demonic is the best mutation because it gives up to 150% attack and health boost. Cursed is also strong with up to 100% attack and health boost, while Shiny is capped at 30%.
Use Double Mutation Chance, wait for Cursed Moon Weather when possible, and focus your best mutations on your strongest long-term units.
FAQs
What are mutations in Be the Final Boss?
Mutations are special unit variants that give bonus stats such as increased attack and health.
What is the best mutation in Be the Final Boss?
Demonic is the best mutation because it can boost a unit’s attack and health by up to 150%.
Can a unit have more than one active mutation?
No, each unit can only have one active mutation at a time.
How much does Double Mutation Chance cost?
Double Mutation Chance costs 159 Robux in the shop.
What does Cursed mutation do?
Cursed increases a unit’s overall attack and health by up to 100%.
What does Shiny mutation do?
Shiny gives a smaller mutation bonus capped at 30%.
Should I use mutations on early-game units?
You can use them early, but it is better to focus your best mutations on strong units you plan to use long-term.

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