i let everyone die except Rinoa, Selphie, and Squall. Rinoa has Revive, Squall has Recover. Selphie summons cerberus, Rinoa summons Eden, ultimecia is dead. rinoa or selphie then casts aura on everybody. i then proceed to beat the hell out of griever. i keep everyone in good helth 'till shockwave pulsar, then just heal with revive and recover, or full cure. griever is dead by now. if aura is off i re cast it, if not i just keep using limits on the next form. he will always die before he gets to use his special attack. then i just repeat this process again against the final form of ultimecia. when she brings my hp down to one squall will usually heal himself or rinoa with recover and selphie will use full cure. if anybody dies they are revived by a full life or the revive ability. keep using this up and ultimecia dies before she even gets the chance to draw apocolypse. then my game freezes about the time when laguna is giving the ring to raine.