No, you have this all completely wrong Link367. No offense though. Sidequests are morwe of a collecting thing. Trading sequences are when you trade things throughout the game to get an ultimate item. I think TP had enought things, so Nintendo didn't wanna add it in. I mean we already had 45 heart pieces, 60 poes, 24 goldens bugs, and lots of others. I think it would of been a pain in the Donkey to make a 'trading Sequence in Twilight Prince. Maybe Nintendo forgot to put it in int he beggining and when they realized it they knew it was too late.