Yeah it is important what you think that frustration is.
For me it is the feeling that I am just too stupid, not skilled enough for a situation orit is just unfair.
If it is my own stupidity i just cannot stop because I think this is easy to do, it's only my fault.

It is like Portal (or any other puzzle game)
You can't pass a chamber and you get frustrated so you turn the game off.
But you can't stop thinking about a solution and suddenly you see it and then you beat it
The feeling you get is incredible awesome.

ninja gaiden

You should have started with Under the Knife 2. It's easier.

Ninja Gaiden is impossible
I can't tell how often i tried the last boss Dx

it's just impossible
If someone beats Ninja Gaiden 1 - 3 without cheating ....
Gets a place in the Hall of Fame

I know right...? After I finished I went totally 'How is the second game supposed to be easier than the first game!?' I was pretty suprised when I played and went 'Whaaaaaatttttt?' when I beat the bosses without much probs while on the first one it was hard as heckkkkk!!!!

The World Ends With You. It made me powerrape my DS for 2 hours trying to complete Joshua's Boss Rush on Ultimate, with the Black Planet pin set. Still haven't tried with Eden's Door set though.

well...i don't had any positive frustration..its all negative...exept mario xD