u can do this with everyonebut they wont make it. with gamma or knux go to mystic ruins and close to where the cave is where u go to the chao garden go to the edge and jump and haover or glide and you will go through it and if u saw the secret tails base but u die when u go through keep hovering or glidng and keep on and u ill go thorugh tails base and u will see the inside if u u till go through there and will die in the water