1-5 is the last level in Christmas Forest from Mr. Santa, the boss in this chapter is Christmas Tree Monster.
Boss Battle[]
Christmas Tree Monster starts his Shield Protection for 5 seconds if you don't use a Bird Hog or other strong weapons to break. his first attack is Head Rage, hit him to 4HP and he use Shield Protection again for 10 seconds if you don't use a Bird Hog or other strong weapons to break. his second attack will be Hand Dig, hit him again to 2HP and he use Shield Protection once again for 15 seconds if you don't use a Bird Hog or other strong weapons to break. his last attack will be Leaf Storm, hit him once again to 0HP and he will be defeated.