Hardest game you have?
 

Stuntman.
That last level made me punch myself.

Many times.

XBox:

Voodoo Vince (platformer)

Tom Clancy's Ghost Recon (first person, squad based)

Pong...

extremly challenging ^_^

Bad Dudes, and uh ninja gaiden on the hardest mode O.o

Kill switch is pissing me off....besides that yeah Ghost reacon and the last half of Midnight Club 2

Probably like XIII or Resident Evil 0

For me it would have to be Final Fantasy X. Im in the middle of a battle right now where this guy kills me like im a little wimp. He just attacks like once or twice and it lowers my people all the way down. Its making me mad. After I lost three times I just started to play something else. I guess I better go play again. Maybe I can figure something out.

Other than that I would have to say Need for Speed Undergound. Im at a drag race in underground mode that I just cant beat. Its tough as nails. I always get close to winning but then suddenly out of no where another car passes me by.

Ninja Gaiden easily