Missable

[Angelic12345]

Is there anything serious that's missable?
For example, I just noticed I missed the champions belt and need to get Omnislash before obtaining Highwind.

Ultimate weapons, armor, limits, etc.

[xXìpèéïñpöølsgødXx]

It's been awhile since I've played through this game, so my memory is a bit fuzzy, so if i get anything wrong someone correct me please.

Afaik there are no missable ultimate weapons or limit breaks.
There are missable materias, weapons and armor (i believe there are stealable armor from enemies in the desert prison, and from enemies once you go to the underwater reactor you can miss out). there are other missable things, being the leviathan scales, if you don't grab them after you fight the robot with arms on disc two. You can miss a materia and a weapon if you don't grab it. I think there's another weapon you can miss there but I don't remember.

Some summons are missable, like the one on the boat and bahamut zero if you fail to obtain all four large materias.

The first enemy skill materia you obtain is missable.
There are two enemy skills that are missable forever, one being trine (you get it from a boss behind niblehiem, and from enemies in the desert), and the other being Pandora's box, which you can only get from the very first bone dragon enemy that you fight. If you fail to obtain it, you can't get it again (i think due to a bug in the code).

That's all i can remember, you can do more research if you're worried about a specific item or whatever being missable.

[Mopey bloke]

Those things aren't true. You can get Championship Belt and Omnislash in the battle arena the whole game through.

[misfitmike138]

Originally posted by Wiseman:

Those things aren't true. You can get Championship Belt and Omnislash in the battle arena the whole game through.

With the exception of when the Gold Saucer is closed, but it reopens.

[Liam]

Barret's ultimate weapon, the Missing Score is missable for the silliest of reasons--where if you don't have him in your party while climbing up the stairs to confront Hojo during the Midgar raid, the item won't appear in the chest along the way.

I guess it's aptly named, lol.

[Kaldarasha]

I'm not sure, if this is true for all objects above, but I have read that you can get a lot of missed objects in the Bone Village.

[didymos1120]

Originally posted by Kaldarasha:

I'm not sure, if this is true for all objects above, but I have read that you can get a lot of missed objects in the Bone Village.

It's definitely true for Barret's weapon. If the OP doesn't mind spoilers, here's a FAQ about missables:

https://gamefaqs.gamespot.com/ps/197341-final-fantasy-vii/faqs/27656