Fireworks

Landing a Fireworks trait on any brainrot instantly multiplies its passive cash-per-second output by five — a meaningful jump that sits comfortably in the upper-mid tier of the trait ladder. It is stronger than the common x1.5–x2 minor traits that most players encounter day-to-day, and it certainly beats the notorious x0.5 Sleepy trait that actually cuts a brainrot's income in half. While it does not quite reach the legendary x9 Strawberry at the very top of the OG tier, a x5 multiplier still represents a substantial income boost that compounds noticeably once you start stacking multiple high-value brainrots on your base.

Fireworks falls into the admin_abuse category, meaning it is not something you can grind toward on a regular schedule. These traits are dropped during special staff-run events where the game's administrators take direct control of the map — in this case, by lining it with firework launchers that fire live fireworks into the arena. Any brainrot caught in the blast radius has a chance to receive the Fireworks trait randomly, so presence and timing during the event window are everything.

Because traits are permanent and stack multiplicatively with any Mutation a brainrot already carries, a brainrot wearing Fireworks becomes a high-value trading target the moment it acquires the trait. That also makes it a prime theft target — rivals will prioritize snatching a x5-trait brainrot over nearly anything else on your base, so keep your defenses tight whenever you are sitting on one.