In The Sims for console, she appears with brown short hair, white shirt, black jeans and white shoes. She and her roommate live at 3 Sim Avenue, an empty house with a big garden outside. She likes to play chess, dance and play the guitar.
Melissa and Chris never appeared in The Sims 2. Two Sims that looked like Melissa and Chris did in fact appear in the H&M Fashion Stuff preview wearing similar clothes that they wore in The Sims (console) version, but it is not confirmed that they are really Chris and Melissa. If they are, that was the last time they were shown to the public.
Melissa uses the same head skin as Sylvia Marie Mashuga, though Melissa has the dark skin tone, while Sylvia's is light. The result is that the two have similar, but not identical, appearances.