Dehydra is a three-headed hydra duck and the gate to the endgame. The follow-up Ancient Hydra fight is similar but tougher. Both punish standing still — keep strafing while unloading automatic fire into the heads.

Attacks & behavior

Multi-head strikes, lasers

Source: Unclaim full-boss run ASR, 2026-08-22. 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