I beat Emerald and Ruby as well... Just plain mass attack :
WSummon materia and KOTR on 1 and the others has the mime materia to imitate the first one. If you time all this well, each KOTR cast 130,000 dmg and in 2 rounds, it was 16 x 130000, more than enough to kill Emerald and Ruby

The hardest part is to gather all the materias, breed the Chocobos and get the KOTR materia. FF7 is the only one i succeded to max everything and gather everything
FFX may looks hard but if you understand how weapons work, you can take advantage of some things to gather the AP to make you powerful with the grid. With that, the last boss was a pushover

However, if you take the optional part where you fight the monsters (forgot what it is called but it was some challenge to get something). The last boss has 10,000,000 HP and some very powerful attacks (almost all is a 1-hit killer) which make it very hard without having a good strategy and a good combination of items.
This post was edited by Xizeta on Jul 13 2005 07:16pm