Things You'll Need
Instructions
Work through the first portion of Final Fantasy 6 until you reach the floating continent area and find Kefka moving the three goddess statues out of alignment. Shadow will buy the party some time to escape and a timer will appear in the corner of the screen counting down the amount of time left before the floating continent is destroyed.
Run through the floating continent until you reach the edge and an option will appear to jump on the airship. Instead of leaving, choose the option to wait. Walk back a few steps and then walk back to the edge a second time and again choose the option to wait instead of flying away.
Wait near the edge until the timer reaches five seconds. Shadow will show up and join the rest of the party in escaping on the airship. As the group is flying away, Kefka will finish moving the statues out of alignment and the World of Balance will be destroyed and changed into the World of Ruin.
Fly to the area called "The Veldt" in the World of Ruin after finding the airship in Darrill's tomb. Take the party into the cave near the middle of The Veldt and battle your way through the cave system. Be certain to grab all the treasure in the cave, especially the weapon called "Striker", as this is necessary to get Shadow to join the group.
Find Shadow lying on the ground at the end of the cave. Speak with Shadow and two Behemoth monsters will attack the group. After killing the Behemoths, the party will take Shadow to the town called Thamasa to have his wounds healed.
Leave Thamasa and travel to the Colosseum. Inside the Colosseum, use the "striker" weapon found in the cave in The Veldt as your collateral for wagering on the fight. The group will have to fight Shadow. As soon as the battle is over, Shadow will join the party.