Keyboard Mania by Konami is a keyboard simulation game boasting a full size Yamaha keyboard of 48 keys, where players are required to press the keys that correspond to the notes of the melody of a set song. 3rd mix has a linking feature with Drum Mania 4th Mix/Guitar Freaks 5th Mix and Drum Mania 5th Mix/Guitar Freaks 6th Mix.
The sequence of the notes is indicated on the monitor, and players read the sequence and press the set notes in order to play the song and earn points in the game. The machine is divided up with two 19" monitors - one for each player. The keyboard is also divided, with each player using 24 keys to play.
Songs available in 3rd mix include Shining Dream by Magic Project, Ride on the Light by Mr T and Show Them the Way by Nahjee.