Hydra Slayer achievements

Had one of the Twins return as a mirror image

Killed 11+ hydras with a single missile throw

Defeat the second boss with an Atlantean.

Had 5+ active powders at once

Conquer 150 levels.

Gave 10000+ at once heads using the Powder of Growth

Saved the Twin with a Potion of Life

Defeat the second boss as a Titan, using at most one Potion of Life.

Defeat the first boss with the Twins.

Commited a suicide

Killed a 2000+ Hydra with an ambidextrous attack

Slain a Hydra with at least 100 heads with the Vorpal Blade.