Has a kinda Monster-ish feel to it, so my guess is Monster.

New pic or hint, please!

Eeeyeah, about that...

http://img162.imageshack.us/img162/7689/guessni8.jpg

Gotta be Moyashimon. Those things in the dust cloud look a lot like those microbes the protagonist sees.

And you'd be absolutely right. :)

Well surprisingly I don't have anime screenshots at work, so if someone has something ready to post, then go ahead and take my place.
However, I do have something at home so if you're going to go, then make it snappy.

Sweet. I'll take it from here, packrat. >=]

http://img171.imageshack.us/img171/8...vi00000gm9.png

Perhaps picture's filename is a cunning trap, but I'll go with Inazuma Eleven =D

Nice one , boo-kun. Your move >=]

Incredible detective work!

Here we gouuuu:

http://img231.imageshack.us/img231/2...2151704lb6.jpg

There is a Naoi-san in Hidamari Sketch. So that's my guess.

And it's a correct guess! Throw something retro for a change =o

Not really retro, but the best I can do right now :P

http://img218.imageshack.us/img218/7...7005033wj6.png

lol isn't that Papillion Mask from Busou Renkin? =p he was so funny and a bit creepy

Buso Renkin, with the fabulous Papillon.

EDIT.
haha damn, but I claim victory cuz screencapping and uploading took time :(

Letsee something new:

http://img218.imageshack.us/img218/6...3232154hh7.jpg

That would be Maria+Holic, right before the faux-rape scream.

A+ quality show.

Edit: Alright, here's my screen.

http://www.touhouhijack.com/images/guessthat.jpg

I'll go with Nabari no Ou. Style reminds me of it, tho I can't remember those sideburns...

Nope, that's not it. <:j

I first thought Moryo no Hako, but then tried Nabari no Ou, since Taco crushed my guess, I went to do some comparisons, and that face looks pretty identical to how they draw faces in Moryo no Hako. So there Tacooooo


EDIT. :(

Nope, that's not it either.

That looks like Leorio from Hunter X Hunter, so that's what I'm going with.

Nope. I'll put up a hint in a little bit.

Alright, here's the hint, albiet an indirect one:

http://i43.tinypic.com/11s2wxh.jpg

Um...isn't that Tengen Toppa Gurren Lagann or something like that? Haven't watched it, just kind of skipped through it to make sure it worked...

Well, yes, that is Gurren Lagann, but that is an indirect hint to my first screenshot. Think like an anime nerd!

If this doesn't tip anybody off I'll go back to boring old same-series follow-up shots :(

This is reaaalllllly vague thought, but it's not from Bamboo Blade, is it? That sushi mad teacher..?