X Japan can also be seen in the movie Tokyo Pop [1988] as the band mates of Diamond Yukai.
The name X was originally a temporary name ("X" as in "we are still thinking of a better name"). "X" became "X Japan" after the band tried to enter the American music industry and saw that the name "X" was already taken.
There is also an X Japan video game called "X-Japan Virtual Shock 001" for Sega Saturn.