Here's what you can do with the Mach Bike in Pokemon Emerald:
* Increased Speed: It significantly increases your movement speed, allowing you to explore the world faster.
* Off-Road Movement: You can ride it on grass and dirt paths, making it easier to navigate certain areas.
* Special Abilities: The Mach Bike doesn't have any special abilities like bouncing, but it can be used to perform tricks like wheelies and jumps by pressing the "B" button repeatedly.
If you're looking for a Pokemon with a bouncing ability, the only one in Pokemon Emerald is Buneary, which learns the move Jump Kick.