This Game Isn't Hard Enough...

[JagermanXcell]

Playing through Dark Souls without using a shield.

OH THE PAIN

I've played through the game slvl 1 (NEVER AGAIN), dual wielded, and even used the Calamity Ring you get from the DLC, so "No Shields" is child's play.
Heres a good one, formally known as... The Dark Souls Mewocenaries Challenge:

Before you beat NG and go into NG+, you must join the Forest Hunters. Once you go begin NG+ you must beat the entire game and kill every boss (DLC as well) with the Cat Covenant Ring on at all times unless you are invading, being invaded, or fighting a boss. Dying during an invasion or just dying in your own world will result in you having to go back to the bonfire so you must kill the host you invade/area boss in order to advance with out being sent back, invading and killing a forest host being the hardest of the two.
Dark Souls veterans know what I mean when I say......... forest gankers.

GOOD. LUCK.

 

[Autofire2]

Nice Xcell. Seraphim17 is doing a Dark Souls run right now on his youtube channel where he goes SL1, no shield, no bow, no damage (he restarts from checkpoint if he take damage)and a few other ridiculous restrictions. It's pretty awesome.

 

[thiosk]

Super Ghouls and Ghosts.

Beat it.

 

[Weaver]

Play nethack and try to beat it without using the wiki.

 

[Z of the Na'vi]

Super Ghouls and Ghosts.

Beat it.

Out of all the suggestions in this thread, this one is by far the most challenging.

 

[triggrhappy94]

Deus ex: HR

Super passive thief playthrough; Don't touch anyone...no non-lethal takedowns, no tranq, no stun gun, no gas grenade or stun grenade (unless you're fighting bosses). No using radar (cover the radar with a piece of paper if you have to).

if that's too easy; add Only level 2 hacking

For extra fun, don't allow yourself to do any of the cheap, easy kills on the bosses.

 

[krugerrand123]

Beating either fallout 3 or New Vegas with no companions, no armor, and using only bare fists.

 

[GildaTheGriffin]

Beating either fallout 3 or New Vegas with no companions, no armor, and using only bare fists.

That's fucking impossible. Deathclaws would one hit you and Enclave would turn you to ash before you reach them.

 

[Ryotknife]

Play any game... with your eyes closed. Relying souly on sound, the ultimate hard mode/ventures in game design for the visually impaired.

that's pretty much what I did in World of warcraft during the Wrath of the Lich King expansion playing raids as a mutilate rogue.

mutilate -> envenom, repeat. No, you don't need to move, many of the bosses were tank and spank.