If you've been digging through Steal a Brainrot, you've probably heard whispers about the Chimpanzini Spiderini—a secret brainrot that's as weird as it is powerful. Players also know it by its old name, Sammyni Spyderini. It's not something you'll stumble across in normal gameplay, so let's go step by step on how it works, where it came from, and the only way to actually get one today.

This guide will save you time by showing exactly what it is, why it's rare, and how to secure one without relying on admin abuse RNG.
The Chimpanzini Spiderini is straight-up nightmare fuel:
It looks like something you'd expect during an admin abuse event, and that's exactly how it entered the game.
This brainrot only appeared during admin abuses. No quests, no drops, no egg hatches. If you weren't online during those events, you missed your shot.
Because it was exclusive to admin abuse, farming locations, spawns, or egg openings won't help you. Players have confirmed over and over—there's no respawn point for this one.
If you want one today, the only real option is through U4GM.
If you’re serious about collecting the rarest brainrots, skip the wasted hours and just buy SAB Brainrots safe from U4GM—fast, safe, and way easier than hoping for another admin abuse event.
| Attribute | Value |
|---|---|
| Cost | $100,000,000 |
| Income | $325,000 per second |
| Rarity | Secret |
Even by secret standards, that's serious cash flow.
The safest route is U4GM's marketplace:
This is especially handy if you're building a team of brainrots for income production.
The Chimpanzini Spiderini (Sammyni Spyderini) is one of the rarest and strangest brainrots in Steal a Brainrot.
If you're chasing big income and a piece of Brainrot history, this one is a must-have from the Steal a Brainrot shop.