Steal an Egg Mutations & Sizes: Golden, Silver, Rainbow, Shiny, Huge

Mutations seen in-game

MutationWhere it shows up
GoldenCommon early — Golden Chicken, Golden Bear, Golden Ice Dragon all seen
SilverSilver Tung Tung Sahur (Brainrot egg), Silver Bear
Rainbow”Rainbow super rare” eggs in Prehistoric/Cosmic; Eternal Rainbow Mosasaurus
ShinyCosmic and late-game hatches

A mutated egg is usually visible in the nest before you grab it (the shell colour changes), so they are worth a detour when the route is safe. Exact multipliers are not published; compare the card.

Size and “Huge”

Every pet and egg has a size, displayed as a weight (kg). Normal rolls are the baseline; “huge” and “massive” rolls can be taller than the player and pay many times more — one late-game clip shows a Kraken “you can’t even see the top of” as the team’s second-best earner, and an Eternal Ice Dragon near 1B/s on a large roll. The official description lists Huge alongside the top rarities because it is that important.

Why this matters for your base

  • A Huge or Rainbow Legendary can out-earn a small Secret — always read money per second (pet list).
  • Keep duplicates of a pet you like: three copies go into the fuse machine.
  • Give away small spares rather than deleting them (how to give pets).

Update 1

Community reports say Update 1 (expected 22 August) expands the mutation pool and adds weather events that may influence spawns. We will list new mutations here once seen on screen — update log. Scripts advertising a “mutation selector” or “pet spawner” are exploits, not features.

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