I have a challenge to all of the Final Fantasy X players who found the game too easy. I'd have to say that this is nearly impossible from what I've seen in the normal game. The challenge is to get through the entire game with some very heavy restrictions.

1) You may NOT use the sphere grid, no matter what!

2) You are only allowed to attack using overdrives (except in tutorials).

3) Aeons MAY be summoned, but only if necessary.

4) If asked you must share your wisdom on any boss or forced encounter.

5) Due to a lack of the sphere grid random battles are not permitted.

6) An exception to 5, you may random battle to raise drive gauges.

Good luck and report your status at least once a week. Unless you readers make a guide there will NEVER be an FAQ for this until I can beat the game this way. My last advice is that as in ANY NSG game Rikkus mix "Trio of 9999" can work miracles. Have fun and enjoy your constant "Game Over"s! =P