Chocobo Racing- While racing, hold down L1+L2+R1+R2. This will increase your speed meter and help you win.
Stamina Cheat- Hold down R1+R2 during a Chocobo race and it will increase your stamina.
Limit Breaks- The list below will explain what the characters final limit break is and where it can be found.
Cloud Strife (Omni Slash)- Get it at the Golden Saucer by recieving 32,000 battle points in the battle game.
Barret (Catastrophe)- Once your done saving North Corel from the trian, visit the woman in the hut in the north west of town and she will give it to you.
Vincent (Chaos)- While on Disc 2, go behind the waterfall near the pond with Vincent in your party. Talk to Lucrecia. On Disc 3 return to the waterfall and get Vincents final weapon and limit break.
Tifa (Final Heaven)- Go to Tifa's home in Nibelhiem and play the piano in her room in the following order: X, Square, Triangle, R1/L1 + Triangle, R1/L1 + Square, X, Square, Triangle, R1/L1 + X, O, X, Square, X. When you are done press the Start button. Search the sheet of music and you will find Tifa's limit break.
Red XIII (Cosmo Memory)- Red XIII's limit break is in the safe at the mansion in Nibelhiem.
Yuffie (All Creation)- Recieve it by fighting Godo in the pagoda in Wutai.
Cait Sith- He only has two limits, use the dice enough and you will get it.
Cid (Highwind)- Search the wreckage off the shore of the Golden Saucer. The limit break is in the Cargo Bay.