The wood comprising the Tree is a different material to that normally found, much harder and more resistant to explosions than usual, as well as being impervious to fire and acid. Instead, to reach the other side, the player must use explosives, digging spells, a wands with spell recoil powerful enough to generate "thrust" for upwards flight, certain magical potions, or teleportation. It is also possible for a Worm to dig a hole through the Giant Tree or to the upper branches where you can easily levitate to the treetop.
The Tree currently does not spawn in Parallel Worlds.
At the base of the Tree is a pool of water which leads to an air pocket inside the tree. Inside is the Secretorum Hermetis. The entrance to the water may be blocked by terrain depending on the world seed, requiring a way to dig past it.
On its east face are branches at various heights that hold nests containing special eggs. The eggs in these nests will often be wiggling eggs, containing a worm of a random size. If the player navigates slightly above the level of the first nest, 10 Happonuljaska will spawn offscreen to the right and fall to the surface, providing a nasty surprise for unprepared players looking to walk back to the Mines.
The first branch on the east face is connected to an alcove that harbours the Curse of Greed challenge perk.
The Achievement Pillars are found along the top of the giant tree.
At the western edge lies a large Music Machine which plays music when struck. Shooting the instrument with certain projectiles can damage it and eventually cause it to explode, rendering it useless.
Some explosive mushroom spore pods can also be found on the treetop.
This is a monument to the Twitch streamer Bammalam, who was the first to venture to New Game + 28 and defeat Kolmiisilmä with all 33 orbs, which requires 552 orbs to be gathered across all the NG+ cycles during that single run, before successfully defeating the boss who will have 141 quintillion HP.