Discover how you can use the all new Mutation Machine in the Plants vs Brainrots experience with this complete guide.

The Merge Madness event brought in some new features to the Plants vs Brainrots experience on Roblox. The Mutation Machine in particular is a big addition to the game. You can now merge two mutated Plants or Brainrots with different mutations and get a new Plant or Brainrot with both the mutations combined. You can fuse several different mutations to make a new one. Merged mutations will increase the earning of the Brainrots or increase the DPS for the plants.
This article will guide you on how to use the Mutation Machine in Plants vs Brainrots.
Steps To Use the Mutation Machine in Plants vs Brainrots

You can find the Mutation Machine on the Center Island. You will require two Plants or Brainrots with different mutations to merge them. Additionally, you will need some EXP Gears, e.g., bottles, flasks, or vials. The Machine requires 300 EXP to power the machine.
Once you have added all the required items, you can start the mixing process. When you start the Machine, you will receive a reward. The mixing will take some time to complete. You can spend 119 Robux to skip the mixing process and get the mutated item.
Another thing to keep in mind is that you cannot mix an already mixed item. Meaning, if you have a Diamond-Ruby Madung, you cannot use it again in the machine with another Madung. The Machine will only accept items with a single mutation.
As you merge more and more Brainrots, you will get rewards for the Merge Madness event. The final rewards consist of Biohazellno seed and Dr Flalarino Brainrot. Both items have a limited rarity and can only be obtained during the Merge Madness event.
Mutation Machine Rewards
Each mutation you create in the machine will reward you with certain items. These will include cash, resources, Brainrots, and Plants. Resources include Potions, Water Buckets, and Cash. You can also receive some Base Card Packs from these rewards. Here is a list of all the possible rewards you can get for merging mutations:
| Mutation Merge Count | Rewards |
|---|---|
| 1 | Cash |
| 2 | Resources |
| 3 | Brainrot/Item |
| 4 | Cash |
| 5 | Mixed Rewards |
| 6 | Item |
| 7 | Brainrot |
| 8 | Seed |
| 9 | Brainrot/Seed |
| 10 | Cash |
| 11 | Item/Brainrot |
| 12–21 | Mixed Rewards |
| 22 | Biohazellno Seed + Dr Flalarina Brainrot |
FAQs
What Is the Ultimate Reward for Completing the Merge Madness Event?
For completing the Merge Madness event, you will receive a Biohazellno Seed and Dr Flalarina Brainrot.
How To Obtain EXP Gears?
Submit some low-tier Plants to the Plant Extractor machine on the Center Island to get free EXP Gears.
Does the Mutation Machine Require Cash To Work?
No, the Machine only requires two Brainrots/Plants with different mutations and 300 EXP to work.

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