Jill Malone?

[triforceguy1]

I think a good idea is being able to switch between characters while playing, but when I mean switch characters, I mean they're both in the same room so you will have to watch out for the other character, it would be good for puzzles where one character has to stand on a switch to open a door but if he/she gets off, the door closes.

I got this idea from the last part of the Anju and Kafei Quest in Majora's Mask