Help with possible Melee trophy glitch?

I'm 100%ing Melee right now and just unlocked every stage and character. On the wiki it says that trophy #220, Marin, unlocks at this point. However, I haven't unlocked her and nothing I do seems to help, from turning my GameCube off and on to unlocking another trophy to just playing an average match of versus.

Does anyone know what might have caused this? Is the trophy able to be unlocked now in the sense that I just have to randomly find it like normal?