Ultimecia is the shittiest boss I've ever seen in my entire gaming life.
At the end of game, the developers decided to shit a disgusting boss that is impossible to beat until ALL GF & characters (not just in the squad) are pushed to the limit. And even so, it's not a given that you'll beat it the first time.
Sorry, but I refuse to call a good game forcing the player to endlessly grind.
Also the basic plot of this game is broken by the lack of any logic to the action. It was not thought through to the end and dumped on the player just some set of incidents in which he must participate.
FFVII is much better than this game in every way.