The Evil Alien Duck is the second boss added in the September 6 Alien update, fighting alongside the Alien Duck Mothership event. Like the Mothership it drops Alien Feathers; its spawn trigger and HP are not documented yet.

Attacks & behavior

Unknown — new Alien update boss

Notes

• Spawn trigger and HP unknown — tier is our grouping, not an in-game label.

Source: Official Discord #updates, 2026-09-06. Boss names are transcribed from gameplay footage — in-game spelling may differ.

More Catch 1 Billion Ducks content

• All weapons
• All dogs
• Duck species & value list
• Hardcore mode guide
• Codes status
• Update history