All the N64 games were complete with their box, including Clayfighter 63 and 1/3, which is kind of boring, IMO.
What do you mean by boring? I don't see how it is different from other consoles. There are several box variations to go for and some games include an instructions card. 1080, Glover, amongst other games (mainly, only?, first/second party games).
I never cared for Clayfighter 63 and 1/3. I rented it a long time ago ( or one of my friends did) and I just didnt like it.
There is one somewhere lying around in the 'net, i think i saw it a few years back...but again, i could be wrong on this ^^