Stage 1 - Classic Rooster
Tutorial starter. Lays Nest Eggs at 100%. Required to begin the chain.
Stage 2 - Cosmo Brat
Hatches from Nest Egg (Uncommon rarity). Lays Scratch Eggs at 100%. The first route hinge.
Stage 3 - NPC Chick
Hatches from Scratch Egg. Drops Cursed Eggs at an 80% rate, which is the community-confirmed source.
Stage 4 - Stone Face
Hatches from Cursed Egg. Lays Cursed Eggs at near 100% once leveled. The grind workhorse. Level it up aggressively.
Stage 5 - 404 Chick (Secret)
Ultra-rare Cursed Egg drop. Secret or Mythical rarity. Top-tier combat stats and a unique Glitch Storm ability per community reports.
Video References