According to ESRB, this game contains: Mild Lyrics
Parents should be warned that Amplitude is not for younger children as it requires a lot of coordination and fast reflexes, which would therefore make the mild lyrics warning a moot point. Gamers in general will find a worthy challenge and will enjoy hooking up with other players online, although they may find having to beat each song four times in each of the four levels of difficulty in order to unlock all the game's bonus features to be a longer ordeal than they have the patience for.
Fans of Frequency will likely be able to blow through most of the game without too much difficulty, except in the very last stages. The gameplay is virtually identical except that the highway layout of the tracks makes it impossible to maintain score multipliers sometimes due to having to travel all the way back to the other side of the screen. The free play bonus after clearing an entire section of music has unfortunately been scrapped and instead appears as a collectible power-up, which means improvisation time at the end of a section has been replaced with sitting around waiting for the next section of tracks to appear.
Deaf and Hard of Hearing gamers should probably avoid Amplitude. Despite having a controller that vibrates to the beat and a sensory overload of interesting graphics, Amplitude cannot be experienced to its fullest without its soundtrack.