Here's the list and descriptions of all the achievements added in 1.6!
"Victory!" - Win without cheating.
"Hardcore Medalist" - win without cheating on hard without losing a life.
"Epic Fail" - run out of lives on the first level.
"I hate Nature" - destroy the flowers.
"The troliloies are strong with this one" - destroy a troll troll block with a bomb.