Boss rewardChicken Boss / Incubator route
Colossal Egg
Storm Colossus is community-estimated near 1%; these are not official odds.
How to get Colossal Egg
Community testing reports one Colossal Egg at roughly five million Chicken Boss damage, with another Founder Rooster Incubator route near 25%.
Verification status
This page was checked against the linked sources on August 31, 2026. Live game data can change after patches, so confirm rare-item decisions in the current in-game index.