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Battlefield: Bad Company 2
Call of Duty 4: Modern Warfare
Call of Duty: World at War
Ratchet and Clank: Up Your Arsenal
Ratchet Deadlocked
Halo 3

Currently Working On:
Ghost Recon Advanced...

If you contact Valve and/or Steam and explain your situation they should be willing to help you out. From what I've experienced gaming companies are normally very nice and helpful about things like...

Finished Crysis 2 a few months back.
Portal 2 and Fable 2 a few weeks ago.
Metal Gear Solid 4 and Mass Effect 1 last week.
Beat Mass Effect 2 earlier today.

At the last boss of Final fantasy...

I think you might be looking for Legend of Heroes for PSP. Sounds a lot like it.

I played an arcade game a few years back, I don't remember much but it was a bullet hell game ad one of the characters was in a nurse outfit with an enormous needle and I think one of the other...