Secret
Base income$750M/s
Base weight6K kg
Found inSkeletal Egg
Speed needed—
Guardian—
Income rank36th of 197
Skeletal Terrorbird is a Secret pet in Roblox Steal an Egg that hatches from the Skeletal Egg. At normal size with no mutation it earns $750M/s — the 5th best of 35 Secret pets and 36th out of all 197 pets in the game.
How to get Skeletal Terrorbird
Skeletal Terrorbird does not spawn in a normal biome nest. It comes from Skeletal Egg — Rare Skeletal re-rolls from the Extinction Egg.
💰 Skeletal Terrorbird income with mutations
| Mutation | Multiplier | Income (normal size) |
|---|---|---|
| Normal | ×1 | $750M/s |
| Silver | ×1.2 | $900M/s |
| Bloom | ×1.25 | $937.5M/s |
| Golden | ×2.5 | $1.88B/s |
| Spirit Bloom | ×2.5 | $1.88B/s |
| Fractured | ×2.75 | $2.06B/s |
| Scrambled | ×2.75 | $2.06B/s |
| Parasite | ×3 | $2.25B/s |
| Rainbow | ×3.5 | $2.63B/s |
📏 Income by size
Open the calculator →Bigger eggs hatch heavier pets that earn more. Base weight is 6K kg; above 125× the gains slow down.
| Size | Weight | Income | Income (Rainbow) |
|---|---|---|---|
| 1× | 6K kg | $750M/s | $2.63B/s |
| 2× | 12K kg | $1.15B/s | $4.02B/s |
| 5× | 30K kg | $2.02B/s | $7.08B/s |
| 10× | 60K kg | $3.1B/s | $10.86B/s |
| 50× | 300K kg | $8.37B/s | $29.3B/s |
| 100× | 600K kg | $12.83B/s | $44.92B/s |
| 500× | 3M kg | $25.64B/s | $89.75B/s |
