A Huge Mysterious Tree!! (Japanese: ぶったおせ! 謎の大木!!Solid Strike! Large Tree of Puzzles!!) is the 10th chapter of the Pokémon Gold & Silver: The Golden Boys manga.
On their way out of town, a boy from Goldenrod Gym stops them, explaining that the Pokémon Summit may be cancelled due to a giant tree blocking Route 36. Whitney explains to Gold that a few weeks ago, a small tree appeared on the route, but nobody cut it down because there was a drought and everyone expected the small tree to die. Yet, somehow, the tree grew larger and larger until it began blocking anyone from passing. Whitney and Gold decide to take down the tree and head for the route.
Around the giant tree, there is a large crowd of campers and spectators, including several street vendors. Whitney's Cleffa picks up a SquirtBottle and tries to water the giant tree, but Whitney stops her, saying that water will only make the tree grow bigger. Whitney and Gold send out Miltank and Bayleef to Tackle the tree down, but it seems unaffected. Whitney sends out Magby, thinking that its Fire-typeFlamethrower will burn up the tree, but it remains unaffected.
The tree starts walking, and the group realize that it is not a tree at all, but a giant Sudowoodo. They think that it may be a Grass-type, but Fire- and Flying-type attacks have no effect on it. However, when Cleffa pours the SquirtBottle on Sudowoodo's foot, it damages it, making Gold realize that it is in fact a Rock-type. He has Tyrogue, Totodile and Bayleef weaken it, then combines Totodile's Water Gun with Pidgey's Gust, creating a rain-like effect, which causes Sudowoodo to shrink. Gold quickly captures it, and his Totodile and Pidgey evolve into Croconaw and Pidgeotto after gaining experience from the battle.
