What U Need (Sonic Rush)

"What U Need" is the level music for Dead Line in the DS game Sonic Rush. The song is played in three different variations within the game. It is played at the selection screen as an instrumental, in Sonic's acts (which has a high pitched bass as the melody), and in Blaze's acts (where it is more techno with a violin added for dramatic effect). It also appears as an unlockable song for Final Fortress in Sonic & Sega All-Stars Racing.