6.5... it was hella generic. Creepy version of a little kid song with slow panning shot interspersed with static noise and short blips of violence that slowly increase in appearance until it's pure static and then the song changes into an "action theme" with lots of shots of violence. The creepy kids song was cool though.
This is so cheesy and 80s new wave Tears for Fears-esque but I love it.
After seeing more video game openings and how broad opening is taken in this thread, this one is probably my favorite from a movie