Although it always pretends to be a tree, its composition appears to be closer to a rock than a plant.
Silver
It disguises itself as a tree to avoid attack. It hates water, so it will disappear if it starts raining.
Crystal
If a tree branch shakes when there is no wind, it's a SUDOWOODO, not a tree. It hides from the rain.
Ruby
SUDOWOODO camouflages itself as a tree to avoid being attacked by enemies. However, because the forelegs remain green throughout the year, the POKéMON is easily identified as a fake during the winter.
Sapphire
Emerald
It mimics a tree to avoid being attacked by enemies. But since its forelegs remain green throughout the year, it is easily identified as a fake in the winter.
FireRed
It disguises itself as a tree to avoid attack. It hates water, so it will disappear if it starts raining.
LeafGreen
Although it always pretends to be a tree, its composition appears to be closer to a rock than a plant.
Diamond
Despite appearing to be a tree, its body is closer to rocks and stones. It is very weak to water.
Pearl
It stands along paths pretending to be a tree. If it starts raining, it seems to disappear.
Stadium 2
Although it always pretends to be a tree, its composition appears to be closer to a rock than a plant.