I hear you brother, couldn't bring me to finish it... I played that game at an age when I would slam my N64 controller against the wall out of frustration, after breaking 1 beyond repair, I quited F-Zero Story mode... Kudos to you for achieving what is a true feat few can brag about ;)

I could go on for a while about God of War (even on easy some parts are hard) since no other game has been as challenging as GoW was. The great thing about GoW is that it is very challenging but you don't feel cheaped out, its just straight up try after try until you beat it.

The ending of Drakengard 3.

I unlocked them all except Invincibility & Invisibility. The Facility level to unlock Invincibility if I remember it well was so freakin' hard, you had to get shot in the back in order to have little "boosts" & have the luck of the scientist being in the right part of the level to get the key to unlock the last door... I foamed quite a few times bitting my N64 controller out of rage!!! Memorable times ;P

The process of getting The Kid in Super Meat Boy...*shudders*

My friend actually did it, but it was utter madness. Somehow we completed the whole thing... Truly one of the hardest things ever in games.

When I was a kid the chain reaction level on agent under fire.

Lately probably the level on payday 2 where you got a trophy if you robbed the server without tripping any alarms. Google it. Sick.

I can't say for sure, but Tubular is pretty damn hard! The only level in Mario World I never look foward to playing!

Pulstar, level 5

Civ 4 on deity, it's not a level but you know. I've won some on immortal but on deity the AI doesn't even let you settle few decent cities. Also far cry 4 arena mode infinite, my fucking cheating whore of a little brother went to round 62 on hard ,of course, and I can't get pass round 52. I even had to ask for help on PSN to the highest ranked guys on that mode