Knuckles' All-Star Move

Knuckles’ All-Star move is an ability utilized by Knuckles in Sonic & All-Stars Racing Transformed

Overview
After getting a Star, Knuckles summons the Master Emerald, absorbing Chaos Energy from it. Upon doing so, he is capable of utilizing a green energy blast that surrounds him in a similar manner to Chaos Blast. After it finishes, the Master Emerald disappears,

Like all other All-Star moves in Transformed, he is given a speed boost, his vehicle changes into plane mode if not already in said mode, and a song plays for the duration of the move, namely Unknown from M.E. in this case.