It released after Perfect Dark, so I don't think I even knew TWINE had multiplayer.
TWINE had a great single player campaign, except for the final mission in the sub full of water. That level kind of sucked. The opening was great, in a bank iirc. I played the first half of that game many times. Goldeneye was faster paced, more open and simple, so I think I preferred that game.
TWINE has a special spot in my memory because I started playing it the day my mom went psycho for no reason and left :) I was eleven and it was right before Christmas.