Cloud's Ultimate Weapon

Cloud's ultimate weapon is called Ultima Weapon. To recieve it, you will have to defeat Ultimate WEAPON. After you return to Midgar and defeat Hojo at the end of the second disk, fly to a lake near Junon. There you will see Ultimate WEAPON hovering over the water. Fly into him to ingiate combat. Knights of the Round works very well in this battle. After you beat him off, follow him until he stops and hovers again, then fly into him. After you beat him enough times, Ultimate WEAPON will hover over Cosmo Canyon. Beat him here to recieve Ultima Weapon and gain access to the Ancient Forest.

Cloud's Level 4 Limit Break

Omnislash can be won as a prize at the Gold Saucer battle arena. You will need 32,000 battle points to get it. This can be a little tough, so I'll give you some tips. First of all, you have a much better chance if you use Cloud after you've got Ultima Weapon and the Slash-All materia, which is in the Ancient Forest. Next, equip Cloud with a lot of HP Plus materia. I had to raise his HP to 9999 and his MP to 999 before I could get Omnislash. You will also want to equip some powerful Materia, but don't rely on magic too much because it is very likely that your MP will be reduced greatly by the handicaps. Then equip Ribbon to nullify all status effects and Escort Gaurd to nullify most magics. If you don't have Ribbon, here is an alternative: equip Cloud with the White Cape accessory so he cannot be turned into a frog. For armour, still give him Escort Guard. In Cloud's armour, link Added Effect materia with a level 2 or higher Mystify materia. This will protect him from Confusion and Berserk. Good luck!