Forestree

Forestree is a boss spawned with the Log Pile. It gains new attacks at certain HP increments. Defeating it for the first time grants the player the I Speak For The Trees achievement.

Attack Method
Forestree will run around while summoning Barkers, and additionally, Dogwoods after losing 2/3 of its HP. It starts throwing applenades at the player at 2/3 HP, and will summon leaves at 1/3 HP.

Quotes

 * On summoning: "ARTIFICIAL BAD! FORESTREE DESTROY!"
 * 2/3 HP: "FAKE IS WINNING? FORESTREE GET STRONGER!"
 * 1/3 HP: "NO, CANNOT BE LOSING. FORESTREE RELEASE RAGE!"
 * Defeat: "FORESTREE... TOO WEAK? MUST RETREAT... HAVE FAILED..."

Aftermath

 * New enemies will spawn.