Nidzumi writes: "The original Amplitude and Frequency were cult hits but didn't even come close to matching the critical and commercial accolades that Guitar Hero did. Now the team at Harmonix are working under the different but an arguably more successful banner of Rock Band and they've been given the chance of introducing their old concept under a new name to a wider audience.
The concept in theory is all to familiar even for Guitar Hero or Rock Band players. Hit the notes on the various charts in time but unlike you'll just be using the face buttons instead of having a behemoth plastic instrument taking up room or a ghastly looking grip that hugs the system. No, Rock Band Unplugged keeps it simple."