You can get Balance Mooncakes from harvesting trees of any kind. The rarity of the tree is the chance you can get any one of the 4 mooncakes (excluding balance). The chance of a mooncake dropped from a tree being a balance mooncake is 1 in 100.
You can also get one (including all the other mooncakes) by purchasing the Harvest Pack that costs 20,000 gems.
It is also used to make Songpyeons.
"This pastry is filled with a sweet bean paste, in 4 flavors combined with a perfect balance. A random jumble of four symbols is imprinted on the top in ancient Growtopian script. Mix this with other Mooncakes in a Laboratory or E-Z Cook Oven to create special Harvest Festival items."
This item can't be spliced.
This item never drops any seeds.