Critical Drive

"Critical Drive" is a musical theme arranged by Yoko Shimomura that appears in Kingdom Hearts 358/2 Days.

Appearances
"Critical Drive" is an alternate version of Deep Drive, which is the main battle theme of The World That Never Was. It is heard while Roxas fights     in the Castle That Never Was, the Neoshadows at Memory's Skyscraper, and during Mission 93.

Composition
"Critical Drive" is approximately two minutes and fifty-six seconds long and plays at a tempo of 170 beats per minute. The piece has a time signature of 4/4 time. The piece has an eight measure introduction that lasts around twelve seconds, and then leads into the repeated melodic section, allowing for smooth transitions between loops. The instrumentation includes strings, piano, female vocals, synthesizer, drums, cymbals, and organ.