# Rustles
Rustles will occasionally spawn near you, accompanied by **particles** and a **unique sound** depending on the block they spawn on. Walking into the rustle will **trigger a battle** with a Pokémon that has increased chances to be **HA**, **Shiny** or have **additional IVs**.
Rustle spawn particles
## Rustle Environments
Rustles will change depending on the environment around you. This includes what block(s) rustles will spawn on, as well as which Pokémon appears.
| Environment | Blocks | Spawn Types |
| :---------: | :---------------------------------------: | :---------------------------------------------: |
| Grass | Grass, Dirt | Land, Grass, Tall Grass |
| Cave | Stone | Underground |
| Tree | Leaves | Tree Top, Air |
| Water | Water | Water, Seafloor, Surface Water, All Rod Types |
| Nether |
