I dont know where to go! I've looked on walkthroughs, and stuff and I'm in the right area (D-2), but this one big gate that is supposed to open according to the walkthroughs just wont. I press up and everything. am I at the right gate? I think so, but why wont it ope, I've done everything, fought all the other bosses. that was the only mission I had left in my database. (besides 2 submissions, but I'm ignoring those) please help!