That f*cking trophy/achievement.

[FinalHeart95]

Battlefield Bad Company, while having pretty easy achievements overall, has a couple of them. There's Bean Bullets Bandages which requires something around 10000 kills, which isn't impossible, just ridiculously time consuming. Then there's "There is no 'I' in squad", where you have to have 20 squad members spawn on you without dying. I would imagine it's pretty easy if you boost for it, but considering I didn't, it's a *****.

Then there's probably the hardest achievements I've seen (other than a certain one from GRAW... *cough*) in I Am Bad Company!. You need all of the awards. Considering these awards include things like getting 52 kills in a match (I've never seen more than ~40) and... well, basically all of the wild cards are pretty crazy.

Also, getting all of the blast shards in inFamous is a pain in the ass if you don't plan for it.

 

[Cosplay Horatio]

L4D - Cr0wned

L4D2 - Level a Charge, I think I need to juice up before I try it but I haven't yet because of the following.

L4D2 - Wedding Crasher, Seriously...I've tried several times to get this achievement and even if I get the Charger and the survivors reach that area I'm either killed, I miss the Charge, or the chairs are gone. I assume the chairs are gone because a pipebomb or propane tank is used to scatter them. It's getting so frustrating that I've wanted to give up but I'm still trying to get it because it's supposed to be easy.

 

[Project_Xii]

I'd have to add the Batman game's "Perfect Freeflow" achievements into there. Just did Arkham City's one. All Batman's moves in one combo. It sounds hard, then you start playing, and it SEEMS like it should be easy, especially when you know exactly what you need to do.

Four hours later....
I don't know what it is, but every time I'd get down to the final few moves, my heart would start pounding, my concentration would waver and I'd ultimately make a mistake right on the final one. It's enough to drive you insane! It's just 14 moves! It shouldn't take that long dammit!

But when you finally get it.... oh man. What a feeling. Almost worth all the torment. Also the knowledge that you'll never. Ever. Have to do it again. That's a good feeling too.

 

[Lederin]

The Conversationalist achievement in Assassin's Creed 1....WHY!?!?

...Then again, I did only find out about it half way through the game when it was too late to do anything about it

 

[bluepanda 492]

Family Practice in TF2 only medic one i don't have currently have 12 out of 5 friends ubered, and still nothing.

 

[hoboman29]

Stim-ply amazing in Fallout NV I'll play the game do as many side quests as I can and I never end up getting it