How do I drown Whorls?
There is an achievement (and item unlock) in Risk of Rain with the requirement "Drown 20 Whorls". How do I accomplish this? I would guess it has something to do with the "Sunken Tomb" level, but the Whorls survive just fine underwater.
You can "drown" the whorls by making them fall off the bottom of the screen on the Sunken Tomb level.