[Multi] What the Hardest Game You've Played?

The hardest game I ever played for long enough to legitimately call it the hardest game I've played, is a SNES game called Jim Power: The Lost Dimension in 3D. Basically, it's a combination of a platformer, an overhead view like Zelda, and a shooter, with each level being a different style. I was particularly bad at the shooter levels. Gradius 3 is another example of a shooter game I suck at, and a game like that may even be harder IMO, but I didn't play it enough.

I know there are games like Silver Surfer and Battletoads that are notorious for their difficulty, but games that hard usually turn me off because of their difficulty and I don't even TRY to complete them.

A couple games that many people consider hard which I beat were Contra and Zelda 2. I used to be able to beat Contra without using the code too.