Zero ~Tsukihami no Kamen~, known as Fatal Frame IV: Mask of the Lunar Eclipse to players of the fan-made English language translation patch, is a Nintendo Wii exclusive, Japanese survival horror game and the fourth installment in the Fatal Frame series. It is the prequel to the original Fatal Frame. Fatal Frame IV employed a brand new story and gameplay elements exclusive to the Nintendo Wii. The game centers around the motifs of the moon, memories and masks, and the dominant color throughout is a vibrant yellow, alluding the brightness of the moon against a dark sky.