Help me find some Pixel art?

So I'm writing an article about Cave Story as part of journalism class... been trying to dig up some of those simple, black and white doodles Pixel does of Cave Story characters; I remember they used to be posted on the Nicalis blog sometimes way back when. Or just ANY Pixel art of Cave Story would be great.

The best example I can find of what I'm looking for is this:

I would be SUPER grateful if anyone had this stuff or knew where to find it! Thanks!

 

http://www.cavestory.org/info_illustrations.php

http://www.cavestory.org/info_beta.php

 

http://www.cavestory.org/info_illustrations.php

http://www.cavestory.org/info_beta.php

ooh, thanks for the BETA link! There's some stuff I can use there
Can't use the illustrations though, spoilers and all