Easy 2 Mega-Materia: In the final dungeon when you are prompted to take your party to the left and right path... take your party to the right path thus leaving the rest to go to the left. Follow the path down to the end where you meet up with the rest of the group. You can take the path that leads to where the party went left - do it and collect all the items from the left path. Now return to the group. They will hand over the items that they found on the left path (which are the sameitems you got).
Tip: When fighting bosses, combine Final Attack materia and either Pheonix Summon Materia or a Revive Spell Materia on master level. If you die you resurrect. Great for Ruby, and Emerald.
Chocobo racing tip; When in the Chocobos Race, hold R1+R2 to slowly refill your stamina bar. If you want to learn about Chocobo Breeding click here.
Huge Materia cheat: The last huge materia you are going to get is from the rocket. You must enter the code in time or the materia will be lost! Enter: Circle, Square, X, X.
How to get Yuffie: Yuffie appears at random in forested areas only. Beating her is simple, she has only about 500 HP. After the batle with her you have to say and do the following things:
1.Don't save your game at the save spot.
2.When she asks to fight again, say "Not Interested".
3.When she asks if you're afraid, say "petrified".
4.When she says she's really goinhg to leave, say "Wait a second".
5.When she ask if you want her to join say "That's right".
6.When she asks if you want to know her name, say "Let's hurry on."
Shooting Coaster cheat: When you see the first zeppelin appear, fire at its propeller and never let up. If you hit it enough, you will get the bonus. It's only when the ride is over that you get to see the size of the bonus, it will be about 30,000 points.