My favorite X-men character has always been Psylocke. Purple hair, pink psychic dagger? What more could you want?

I didn't read the comics, though, I just played X-men: Next Dimension on the Playstation 2.

So what's with the inclusion of Psylocke in the game, but ZERO inclusion of her in the storyline? Every other character is there! Where is our powerful purple princess????