Most Difficult Xbox 360 Achievements

According to Xbox360achievements.org, nobody has EVER gotten this achievement. You have to complete the whole game without taking damage. And the worst part is... It's only 30 gamerscore.

Why is this not at the top?

A tip, play Pillar of Autumn co-op legendary, I couldn't believe I got it when me and my friend were playing.

Man, this wasn't hard to get, just annoying.

Done this on 4 different profiles and still finds a way to weasel out my inner rage. By far the hardest achievement

The most difficult task I have ever accomplished on any game.

The hardest achievement of the whole game.

This is the hardest achievement I tried to get in my entire life. I tried to do it with other players but it was epic failure for me of course. Hardest I ever did. Do you know what I'm saying?

Yes dude. I understand your pain. It took me 4 hours to get it in 1 game. My first attempt joining a random lobby and we ended up completing it. Hardest Easter egg besides buried's

Requiring 4 skilled players, a wonder weapon, and tons of tasks that need to be completed.

Just completing the game was hard enough. Now they want us to 100% it? That means we have to go through the entire dark world, collect all of the bandages, and complete the bonus challenges. Not happening.

The hardest part of this challenge is you could look up EVERYTHING and still not be able to get it. This achievement popping was the most satisfying accomplishment of my 360 career

You have to be the #1 best player in multiplayer. Ever. Of all time.

I don't vote for Achievements that I don't have, so this is the hardest achievement I achieved. It brings 100 Gamescore. And 'yes' there are harder on this list like "My kung fu is stronger"... they need long time, they are not "Hard"

Start with level 60 max everything and then cover behind walls till the end of earth

What about this one? I bet 90% of you haven't finished it. ( its to finish origins and find samantha)

Gain mastery of all 28 fighters. Gaining mastery of a character also requires you to play as them for 24 hours of gameplay, meaning 28 total days of gameplay (even idling, until your Xbox stops working) just to get an achievement. Ridiculous.

To get this achievement, you have to rescue almost EVERY survivor in the game. It's no cakewalk, especially with the AI.

This isn't the absolute hardest of achievements but it's still really hard and time consuming.

Objective: 5000 miles to drive
That is all that needs to be said.

To get this achievement, you have to get all 65 ONYX medals, and be at least level 100. According to the Xbox One (yes, Gears of War 3 is backwards compatible), only 0.45% got the achievement. It might be impossible today since one of the medals is for tournament participation (Bronze is 5, Silver is 10, Gold is 20, and Onyx is 30), and I don't think they still have Gears Of War 3 Tournaments anymore.

This achievement requires you to play the endless sett list, which is all of the songs on the disc, without pausing or failing,

You have to beat every level on Madness without dying.