Looks more like Nineball to me.

"What do you mean it's not awesome" pool?

I AM GUNNNNDDAAAAAMMMMM!

There is, in Armored Core, a mech called 'Nineball'.

We have seen her here, and we know true fear.

Not awesome? what are you talking about? This is the most awesome of awesome EVAR!

'Why are all of you here? Why do you insist on interfering?'
...
...
'The Corporation, the ACs, the Raven's Nest.'
'All of these were formed by ME.'
'For the sole purpose of recreating Gensokyo and Youkaind with it.'
'That's the duty to which I've been entrusted.'
'Those who wield too much power...'
'Those who only bring Chaos...'
'They are simply not part of the program.'
...
...
'I was created to protect Youkaind and this world. I intend, to fulfill, this task!'
...
'Modifying Program, Phantasm-EX Level.'
'All Spell Card checks are complete.'
'Combat Mode is now engaged.'
'TARGET VERIFIED COMMENCING HOSTILITIES!'

NineballSeraph said:

'The border, the spells cards, the silly hats.'
'All of these were formed by ME.'
'For the sole purpose of recreating Gensokyo and Touhous with it.'

Fix'd.

My apologies, but I can't help but think of G Gundam upon seeing this.... and this won't leave my head:

"THIS CARDBOARD OF MINE IS GLOWING WITH AN AWESOME POWER! IT'S CORRUGATED INTERIOR TELLS ME TO DEFEAT YOU! TAKE THIS! MY LOVE, MY HATRED AND ALL OF MY ⑨! SHINING ⑨!"

We're all doomed.

I love how this is tagged "Cardboard box gundam" and "Armored core"

Aleander said:
There is, in Armored Core, a mech called 'Nineball'.

We have seen her here, and we know true fear.

So that who was piloting the nineball mech in Aromored core. oh god...

Suddenly I remember Hyperdimension...

This IS scary. I don't want to see her piloting any vehicle, let alone a gundam!

Bound to happen sooner or later

It's cool, just boost away and use a flamethrower.

Unless this is AC2:AA version, then just boost away, then up and down against the wall, firing large rockets when she gets beneath you.

....and that sounds quite perverse when I read it.