What is the best mutation in Be The Final Boss?

Demonic (+150% ATK/HP) is the strongest. Cursed (2x) is an excellent mid-game target. Shiny (+30%) is still worth keeping early.

Do mutations change abilities?

No. Mutations only scale ATK and HP. Passives, range, and skill damage stay the same as the base unit.

When should I roll for mutations?

During Cursed Moon when odds double, or after saving souls from an efficient farming session. Avoid one-off rolls outside boosted windows.

Where is the full mutations database?

See the Mutations page for multipliers, price premiums, and the live simulator.

Mutations Roll Guide — Shiny, Cursed & Demonic

When to roll, which mutation to target, and how Cursed Moon doubles your odds — illustrated summon guide.

Quick answer

Mutations only boost ATK and HP — not skills or range. Ranking: Demonic (+150%) > Cursed (2x) > Shiny (+30%). Save souls for Cursed Moon when mutation odds double, or use the Double Mutation Chance pass. Replace normal copies with Cursed/Demonic versions of your core units.

Video source

Multiplier values match observed in-game data on our Mutations page. Event timing varies — check the Events page for the current schedule.

Radex Tips — ALL MUTATIONS GUIDE (BEST MUTATION) in BE THE FINAL BOSS Roblox

Roll smarter

1
Recognize mutation labels on summons
Shiny, Cursed, and Demonic tags appear above a minion's head when rolled. They are stronger stat versions of the same base unit.
Mutations appear as colored tags above summoned minions.
2
Compare the three multipliers
Shiny adds +30% ATK/HP. Cursed doubles both stats. Demonic adds +150% — the current best mutation for end-game teams.
Shiny is +30%, Cursed doubles ATK/HP, Demonic adds +150% — only raw stats change.
3
Wait for Cursed Moon
During Cursed Moon weather, mutation chance doubles. This is the best free-to-play window to spend saved souls.
Wait for Cursed Moon — mutation odds double during the event window.
4
Batch rolls at the Summon Altar
Focus souls on your main damage dealers. Replace normal roster copies with Cursed or Demonic versions instead of rolling randomly.
Batch your soul spending into focused summon sessions, not one-off rolls.
5
Target Demonic on core units
Demonic is the long-term goal for units you upgrade with Fusion Shards. A Cursed copy still beats a normal Mythic.
Demonic is the end-game mutation target for your main damage dealers.