***This is nightmare mode of RootCrack, so I WOULD ASSUME you beat the original RootCrack first. If not, you're gonna have a real bad time. So just, try and finish Normal mode first. But even if you did finish the original RootCrack, this one is no joke. -Rare sound cues -100 seconds -10 stages to crack -Extremely short fuse -No visual cue for RootCrack -Intruders move very fast