Squall as a person? no I don't think so.
But given a gifted player maybe.
I'll say possibly and heres why.
In ff-7 cloud's party had combos like final attack/ phoenix which works great when you die.
Squall, not so much. He just doesn't have the support of materia like cloud.
Maybe if you had enough slots and drew enough magic, you could be immune to all his attacks. Ultima is non-elemental, correct? Enough defense and magic defense plus regen and haste would probably work as long as you had a ribbon or something along those lines.
Totally.
Yes especially if it uses Terra Break.
Most likely.
If you are talking about the Omega Weapon from Final Fantasy VIII then I would say that Ruby is harder for a number of reasons, first of all Ruby Weapon is much more resistant to physical and magic attacks and there's really no easy way to beat it without cheap materia arrangements and other tricks. Omega has a lot more HP (I think) but you can use a number of items on yourself to make yourself invincible and it is very easy to manipulate limit breaks to get Squall's lionheart over and over. So in my opinion Ruby Weapon is harder.
Get the Goundon
by fighting
YES, YOU DUMMY!(after you defeat the Pokemon League and get the Ruby/Sapphire.)
You can defeat trainers and sell items.
In emerald find out in ruby orgin cave.
800,000.
yes swarpert is a greatest Pokemon to defeat elite four
Defeat Flannery of the Lavaridge Gym, and then return to Petalburg City to defeat Norman of the Petalburg Gym.