when your in ch.5 he gets hurt by some machina in a cave in the thunder plains and after you save him from the machina he goes on your air ship
don't hate the playa hate the game.join team ozzo,roozo,firestorm,and the soon to be best clan on super cheats game guru empire join or be vanquished be us.friends:ozkid,PS freebie:oz,brunsey,rooku,pyro,missy luver:^)