MAP31: DejaVu is the secret level of Memento Mori II. It was designed by Orin Flaharty and uses the music track "Bavor The Mad" by Mark Klem. The title name comes from the French expression "deja vu", the psychological sensation that you are repeating a situation already seen or witnessed in life. Deja Vu is designed in a techbase style reminiscent of Doom's Knee-Deep in the Dead, hence its title, which comes from the French expression "deja vu", the psychological sensation that you are repeating a situation already seen or witnessed in life.