And I used the guide noted on the Achievement guide in the sub-forum. You can do it as you progress in the story, but I did it after I finished Venice. =\
The feathers were alright, the only problem was that after I finished the guide I actually missed one feather and had no idea which one it was, so I had to run from the beginning again.. Luckily it was halfway through the guide so it wasn't so bad.
Alright, just make sure you're player 1 and it's your file. XD Won't work otherwise.
And alright, good luck. I'll be on XBL if you ever wanna chat or need help on something. My tag is Kirye Delsus, even though you could see it on my sig anyway. XD
- Start up your file with your gamertag logged in on player 1.
- Connect a second controller, but don't log in any gamertags.
- Press Start on the second controller.
- Go into the simulator, and redo every big boss battle. From Tinkerer all the way to Nick Fury. Basically every boss that counts towards the achievement.
- If you don't have a second person to help you, press Select on the second controller to switch it to AI during battle. You'll have to keep pressing it after every cutscene though.
There's a list somewhere around the MUA2 sub-forum. Congrats on the Crab achievement btw.