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Weather / MITOSIS FIELD NOTES

Roblox Mitosis Weather Events: Bonuses, Timers and the Weather Jar

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Weather can change your mutation chances, boost sale earnings, or bring falling meteors and candy into the lab. Identify the active event, choose whether to focus on splitting or selling, and watch its countdown.

Roblox Mitosis Weather Events: Bonuses, Timers and the Weather Jar — illustrated cover

Choose What to Do During Each Event

Use the event directory to check bonuses and identify the weather currently running.

  • For rare mutations, keep splitting during Eclipse. Its separate rare-mutation bonus makes this the window to prioritize for rare discoveries.
  • For Molten, keep splitting during Lava Rain. Its message says most balls turn Molten. The larger general mutation multiplier does not make it a better rare-mutation event than Eclipse.
  • For cash, build a batch and sell during Gold Rush or Rainbow. Complete the sale while the relevant countdown is active. Gold Rush provides the larger individual sale bonus.
  • During Meteor Shower, check the token readout and remaining time. You can continue splitting and selling while it runs.
  • Recognize Candy Rain by falling candy and its event timer. Use the event name to distinguish it from a sale or mutation boost.

Blood Moon is also a named environmental event in Mitosis.

Rainbow can benefit sales during a Boss goal, but the Boss restriction still applies. If only half your balls pay, the weather bonus does not remove that restriction.

For other ways to improve discoveries, see mutation luck options. For sale timing across ordinary production and challenges, see the money guide.

Weather and Environmental Events
NameTypeSale multiplierMutation multiplierRare mutation multiplier
Meteor Shower
Timed weather event
— — —
Eclipse
Timed weather event
—
1.5 × (While Eclipse is active; displayed as MUTATIONS.)
6 × (While Eclipse is active; displayed as RARE ONES or RARE.)
Candy Rain
Timed weather event
— — —
Lava Rain
Timed weather event
—
1.75 × (While Lava Rain is active.)
—
Gold Rush
Timed sale-boost event
2 × (While Gold Rush is active.)
— —
Blood Moon
Environmental event (Named in the official game description.)
— — —
Rainbow
Timed sale-boost event
1.5 × (While the Rainbow event is active.)
— —

Meteor Shower

Applies to
Everyone present
Displayed token amount
24 tokens (Example Meteor Shower event card: TOKENS +24.)
Timer
Remaining time appears on the event display.
Can coexist with
Eclipse (Example overlap during the third challenge stage.)
Lava Rain (Meteor Shower continued after Lava Rain ended.)

Eclipse

Starting timer
120 seconds (Example timer at event start.)
On expiry
Mutation odds return to normal.
Scene appearance
Purple scene during Eclipse.
Can coexist with
Meteor Shower

Candy Rain

Applies to
Everyone present
Scene appearance
Falling candy; the preview shows a pink scene.
Timer
Remaining time appears in the upper-right event display.

Lava Rain

Applies to
Everyone present
Mutation tendency
Most turn Molten. (Event message accompanying BALLS MUTATE ×1.75.)
Approximate starting timer
120 seconds (Example starting timer: approximately two minutes.)
Can coexist with
Meteor Shower (Lava Rain ended while Meteor Shower remained active.)

Gold Rush

Reward level
7 level (Listed in Level Rewards.)
Duration
120 seconds (Level 7 reward description.)
Scene appearance
Coin rain during Gold Rush.
Included in
1 × Starter Pack (Official pack description; listing marked not for sale at collection.)

Rainbow

On expiry
Sale earnings return to normal.
Challenge use
Boss-clear example: Rainbow is active while only half the balls pay.

Watch the Weather Jar Fill

The Weather Jar is the shared weather trigger. Watch its progress in the upper-right area of the lab.

  1. Look for FULL! when the jar fills.
  2. Watch the jar tilt and pour out.
  3. Read the weather announcement and its remaining-time display. Meteor Shower is one event that can follow a full jar and applies to everyone present.

Be in the server when the jar fills to earn the Gold Team Effort achievement. The condition is being present at that moment; see the achievement index for other collection goals.

A full Weather Jar tilts above the cells as the Team Effort achievement appears.

Track Overlapping Timers

A new weather announcement does not mean the previous event has ended. Eclipse can begin while Meteor Shower is active, and Lava Rain can also coexist with Meteor Shower.

Check the upper-right weather display and the individual event cards for their countdowns. Eclipse can start with 2:00 showing while Meteor Shower has only seconds left. Lava Rain can start with roughly two minutes showing, yet its ending message can arrive while Meteor Shower continues.

Respond to the event that actually expires:

  • Lava Rain ends: its mutation window closes; Meteor Shower may still be running.
  • Eclipse ends: its boosted mutation odds return to normal.
  • Rainbow ends: its temporary sale bonus ends and normal sale earnings return.

Plan your next split or sale around the bonus you want to use, rather than treating every timer as one shared deadline.

Lava Rain ends while the Meteor Shower card still shows time remaining.

Find Gold Rush Rewards

Level 7 lists a Gold Rush reward with double sale earnings for two minutes. Click the XP area at the bottom of the screen to open Level Rewards, then find the level 7 entry. Once eligible, use CLAIM or CLAIM ALL for available rewards and check their claimed status. The level rewards guide covers the other unlocks and reward states.

The Starter Pack also lists a Gold Rush as part of its one-time new-player offer. Its listing was marked not for sale. See game passes and bundles for the pack’s other contents.

Read Meteor Shower and Candy Rain Displays

Meteor Shower

Look for falling meteors, the Meteor Shower label, and a countdown. Its event card includes a TOKENS readout. Read that amount as part of the current event display. The event applies to everyone present, and you can keep splitting and selling while it runs.

Candy Rain

Candy Rain fills the scene with falling candy and can tint the lab pink. A candy-filled jar can announce THE JAR IS FULL! and GET READY before the event begins. Check the upper-right Candy Rain label and remaining time to confirm it is active; FOR EVERYONE HERE identifies its shared scope.

If an event instead offers a gun or a net to grab, follow the minigame prompts for the corresponding activity.