Bumbatron: income, cost and where it came from
Formula follows the wiki's worked examples. Not verified in game.
By base income it is number 23 of 338 Secret brainrots with a stated income on the wiki, where 1 is the highest and ties share a rank. It pays for itself in 13.5 min with no mutation. The wiki names: Bee Shop.
Bumbatron facts
| Rarity | Secret |
|---|---|
| Income per second | $172.5M/s |
| Cost | $140B |
| Payback time | 13.5 min |
| Rank among Secret | 23 / 338 |
| Released | Update 61, Aug 8, 2026 |
| Availability | unobtainable |
| Comes from | Bee Shop |
| Wiki notes | part of the Bee set |
Bumbatron income with mutations
| Mutation | Multiplier | Income per second |
|---|---|---|
| Default | 1x | $172.5M/s |
| Gold | 1.25x | $215.63M/s |
| Diamond | 1.5x | $258.75M/s |
| Rainbow | 10x | $1.725B/s |
| Cyber | 11x | $1.8975B/s |
| Eclipse | 14x | $2.415B/s |
| Eclipse + Fire + Nyan | 24x | $4.14B/s |
Multiplier = mutation + traits, income = base x multiplier. Fire and Nyan are 5x each. 15 mutations exist; the table shows the main ones.
Nearby brainrots
- Next higher income in Secret: Celestial Pegasus ($175M/s)
- Next lower income in Secret: Bunny and Eggy ($170M/s)
Brainrot income list · Calculate with Bumbatron · Traits and mutations
Questions
Why is Bumbatron not obtainable?
Bumbatron has a base income of $172.5M/s. The wiki marks it unobtainable. The wiki describes it as: part of the Bee set. It came in Update 61 on Aug 8, 2026.
Where does Bumbatron come from?
For Bumbatron, the wiki names: Bee Shop. It arrived in update 61 (Aug 8, 2026). The wiki marks it unobtainable.
When was Bumbatron released?
The wiki lists Update 61, which went live on Aug 8, 2026.
Source: Steal a Brainrot Wiki: Bumbatron (rev 182803, Sep 20, 2026), Update Log (rev 188265, Oct 11, 2026). Licence: CC BY-SA 3.0. Facts were restructured and the numbers recalculated here; the text is our own and no wiki images are used. Changes were made. Checked Oct 15, 2026. Not affiliated with Roblox Corporation or the developers of Steal a Brainrot.