Subquests & Extras in .Hack//Infection

As a general rule, it's pretty hard to miss stuff.  Just keep reading the board and your emails.

Time Trial

Use Delta Chronicling Pagan Sunny Demon.  Use a speed charm and Fairy's Orbs, and you should only run into one or two battles.


Key Words on the DVD

Delta Hideous Organ Market Scaffold - Statue has Ice Bar, Rainbow Card, and Grunt Doll.
Delta Voluptous Her Remnant - Statue contains Kagayuzen, Grunt Doll, and Yellow Candy.  You can also find the Rusty Nails here.  They're useful for data draining low level monsters, since they have negative attack, and can hit without killing.
Delta Dog Dancing Passionate Tri Pansy - Ceramic Helm, Yellow Candy, and Rainbow Card.

Areas to Go Back To

I've made a post on this before, I think.

Sometimes, you'll reach a key area - a boss fight or such like - before reaching the Zeit statue.  And then the game automatically pulls you out.  And then you have to go back into the area and right back down into the dungeon for the items (or, at least, I do, because I hate knowing that they're there, and I haven't got them).

These are the areas that they yank you out of;

Delta Boundless Corrupted Fort Walls - Statue has Fishing Gloves and Rainbow Card x 2.
Delta Closed Oblivious Twin Hills - Statue  has Wyrm Scale, Grunt Doll, and Rainbow Card.
Delta Plenteous Smiling Hypha
Delta Putrid Hot-blooded Scaffold - pulls you out when you pick up the remedy, which is in the south-west corner of the final floor.  Get the statue first, and you won't have to go back for anything; Fireman's Coat, Rainbow Card, Grunt Doll.
Delta Buried Pagan Fiery Sands -  Iron Anklet, Rainbow Card, Grunt Doll.