Mutations
Spin a Fem mutations explained: how to roll them, when to reroll, Pride mutation value and which mutations are rarest.
Introduction
Mutations give your Fems unique cosmetic and rarity flair in Spin a Fem — a second layer of collectible depth on top of the 137-Fem roster. When you obtain a Fem, it can carry a mutation that changes its look, and special Pride mutations with rainbow cosmetics are among the rarest and most coveted effects in the game. This page explains how mutations work, how to roll them, how mutation rerolls function, and which mutations are worth keeping. Because mutation rerolls are a limited resource — handed out through codes like MUTATIONFRENZY and REROLLS — knowing when to reroll and what to chase is key. We also cover the Mutation Frenzy event that boosts reroll odds, and give you a clear priority list for saving rerolls until the rarest effects are in rotation.
Mutation Types Quick Reference
| Mutation | Rarity | Effect | How to Get |
|---|---|---|---|
| Pride Mutation | Very rare | Rainbow cosmetic | Pride event, rerolls |
| Rainbow Mutation | Rare | Color-shifting look | Mutation rerolls, events |
| Special Mutation | Uncommon | Unique flair | Regular rolls, rerolls |
| Standard Mutation | Common | Cosmetic variation | Regular rolls |
Mutation Roster
Pride Mutation
The rarest event mutation with rainbow cosmetics
Rainbow Mutation
Rare color-shifting cosmetic that collectors prize
Special Mutation
Uncommon unique flair that adds value to any Fem
Standard Mutation
Common cosmetic variation found on most rolls
Core Mechanics
Mutations are cosmetic and rarity modifiers that appear on your Fems, either from the initial roll or from using a mutation reroll. Each Fem can carry one mutation, and the mutation affects how the Fem looks and, in some cases, how valuable it is to collectors. Rerolls let you replace the current mutation with a random new one, and because rerolls are limited, the community saves them for events when rarer mutations like Pride are in the pool. Mutation Frenzy events temporarily boost the odds of rare mutations, which is exactly when the MUTATIONFRENZY and REROLLS codes drop. Pride mutations are event-locked and among the rarest — many players consider a Pride-mutated Flex Fem the ultimate flex. Mutations add a reason to keep rolling duplicates, since a common Fem with a rare mutation can be worth more than a plain higher-rarity unit.
Advantages
Mutations add a second collection layer that keeps the game fresh long after you have most Fems. A rare Pride or Rainbow mutation can turn a common Fem into a prized collector item, giving even early-game units long-term value. Mutation rerolls give you agency: instead of waiting for RNG, you can chase the exact mutation you want during event windows. Because codes like MUTATIONFRENZY and REROLLS hand out free rerolls, even free-to-play players can participate in mutation hunting. And since mutations stack with rarity, a Flex Fem with a Pride mutation is the ultimate status symbol — the kind of unit that makes other players stop and inspect your plot. For collectors, mutations are half the fun of the game.
Challenges
Mutation odds are community-reported rather than officially published, so rare mutation rates can shift after updates. Rerolls are limited, and blowing them on common mutations during a non-event window can feel wasteful. Pride mutations are event-locked, so if you miss the Pride window you may wait months for them to return. Mutation Frenzy events are time-limited, meaning you need to be online and rolling during the event to benefit. Finally, mutations are cosmetic on top of rarity — a bad reroll can remove a mutation you liked, and there is no undo. Save your rerolls for event windows and accept that some rolls will miss.
Frequently Asked Questions
What are Pride mutations?+
How do I get mutation rerolls?+
Which mutation is the rarest?+
Quick Tips
Save your rerolls for Mutation Frenzy events. The MUTATIONFRENZY and REROLLS codes drop free rerolls during these windows, and the boosted odds make them dramatically more valuable. Using rerolls outside an event on standard mutations is usually a waste of a limited resource. The boosted odds only last while the event is live, so log in during the frenzy, use your free rerolls from the codes, and stop only when you hit a mutation you are happy with.
A rare mutation can make a common Fem worth keeping. Do not auto-fuse every duplicate — check its mutation first. A Pride or Rainbow mutation on even a Common Fem is a collector prize, and fusing it away is the kind of mistake players regret for months. Many players check mutations before fusing anything, because the collector market treats a rare mutation as part of the unit value — never assume a duplicate is safe to sacrifice.
Chase mutations on your best Fems first. Rerolling a Flex or Mythic Fem with a bad mutation is more valuable than rerolling a Common, because the rarity multiplier applies to the collector value. Prioritize your highest-rarity Fems when mutation hunting. Use your rerolls on the units that matter most — a single Flex or Mythic with a great mutation is worth more than ten Commons with random flair, so prioritize your top five Fems first.
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