Just the other day I was thinking how cool it would be if one of those And1 streetballers put themselves through the hoop after a dunk. I question whether this video is doctored, but it appears to be legit.
N64 was cartridge based. So most cartridges had it's own internal battery to save. The Gamecube is special mini-DVD format with no way to save onto them. And since it has no internal Harddrive like the X-Box you need a memory card definatly.