If you would like to submit a sprite sheet here, contact Goji or Saku or you can post a request in the forums. We welcome all work from fellow sprite artists.
Please adhere to any rules the sheets have, and do not host them on any other sites.
The NZ 2006-2008 © Gojitaka and Sakura Ayomi. All Rights Reserved. Sonic, Vectorman, Ristar, NiGHTS characters © Sonic Team & Sega. MegaMan, Street Fighter characters © Capcom. Mario, Kirby, Link, Metroid characters © Nintendo. Kanon characters © Visual Arts-Key. All other and custom characters are © their respected owners/creators. 
MegaMan, Street Fighter characters © Capcom.
Mario, Kirby, Link, Metroid characters © Nintendo.
Kanon characters © Visual Arts-Key.
bravenet.com