One word to describe this: Fast.
The twin electric guitar playing is mind-numbingly quick, and the percussion is hardly a step behind.
The guy playing Stepmania appears to a be a savant of celerity as well, but I've a sneaking suspicion that there were more than one set of hands on the keyboard when this went down.
This power metal band plays perpetual tribute to the legions of Western males lost in the ennui and anomie of contemporary abundance, who house within themselves a desire for some epic purpose in their lives. The sound is uplifting and energizing. It's good stuff.