You have left your hometown, a quiet village nestled in in the heart of the Kanto region, and are beginning your journey as a Pokémon trainer. Equipped with nothing more than a handful of Pokéballs and a single Pokédex gifted from your professor back home, you continue down the route until you catch sight of a dense cluster of vibrant foliage up ahead. As your gaze fixates on the lush underbrush before you, it begins to rustle wildly with movement. What do you do?