How:
Yoshi's control over sound will evolve to affect the sense of touch. Yoshi discovered this power while listening to a heavy bass song at a birthday party he was dragged into. He was amazed by the way the speakers produced enough sound to shake the objects around it, so he bought a 808 speaker. He played with the new toy and studied its ability to produce sound. After time he was able to emulate the affect and add his own spin to it.
What:
Yoshi will gain the ability to make his sound waves felt. Allowing them to do physical damage along with damage to his opponents hearing. Yoshi will be able to make his opponents hear and think they feel someone behind then. Within time Yoshi will be able to create walls of sound waves to knock back his opponents but at the moment he can only disorientate, and defend himself with the power.
