ff7 riddles

[Rantz]

Argh... *Pulls hair out* This is hard! *Pokes you with Guard Stick*

*Steals Guard Stick*

Aggregate power refers to materia, hmm? So, at this optional place you will get materia? Hmm... in favour of green... chocobo? Is the heaven's grant the Highwind?!

Is it the Wutai materia cave???

Nope. The heaven's grant is also not the Highwind (more literal, even), and "green" is not the Green Chocobo. Maybe look up alternate meanings of "green"?

give us another hint if its wrong!

"before death's peace build thrice a wall" is metaphorical. The rest of the lines are literal.

Easy, it's Vincent Valentine.

Not even close

Vincent Valentine in his coffin.

No arms I provide, no rest - Helping hand as optional, he never sleeps in his covin
I'm an option in between - Optional Character
I will put you to a test - Ask a question
in favour of the green - Only to Barret 'if Barret is in your team, he'll ask a question

But I'll help you too, don't fret! - Ally
A heaven's grant might be of use - He's a beast
Aggregate power you will get - Get his powers
You haven't got much to lose! - More character, nothing to loose

So come on, warrior, heed the call! - Cloud, come to Vincent
Though you by coming here - Your main reason wasn't Vincent but you did came here
before death's peace build thrice a wall - behind the wall, were Vincent Lies
there is no need to fear. - He is dark and mysterious, but friendly.


So yeah, it's Vincent Valentine in his coffin.

Still not right. You're thinking far too metaphorically, except for the next to last line, where you're not being metaphorical enough.

Here's a few hints:
The word "aggregate" even tells you what materia it's referring to.
"there is no need to fear" is (arguably) the least important line, it's mostly there for rhyme and rhythm. Otherwise, basically every line and word counts for something more than it says.