NGC:
http://speeddemosarchive.com/gamelist/GCN.html
GBA:
http://speeddemosarchive.com/gamelist/GBA.html
GB:
http://speeddemosarchive.com/gamelist/GB.html
GBC:
http://speeddemosarchive.com/gamelist/GBC.html
FC/NES:
http://speeddemosarchive.com/gamelist/NES.html
N64:
http://speeddemosarchive.com/gamelist/N64.html
SNES/SFC:
http://speeddemosarchive.com/gamelist/SNES.html
Wii:
http://speeddemosarchive.com/gamelist/Wii.html