What is overdrive?

Overdrive is collected during select portions of a song by successfully playing all white notes within that section (guitar and bass players can also use the guitar controller's whammy bar to extract Overdrive from white sustained notes). Once the meter is filled halfway, players can deploy their Overdrive, resulting in the "Band Meter" (which tracks how well each player is doing) changing more dramatically. This allows players to strategically use Overdrive to raise the Band Meter and pass portions of a song they otherwise might have failed. In solo play, deploying Overdrive doubles the player's score multiplier. However, in band play, activating Overdrive instead increases the score multiplier of the entire band by two. Additionally, players can deploy Overdrive independently of each other, as well as collect additional Overdrive while it is deployed and draining.