input: [Games] Y-B2W2 [Setting] Sound [Options] DP-B2W2: Mono Stereo GS-FRLG: Mono Stereo Yellow: Mono Earphone1 Earphone2 Earphone3 [Notes] This setting was removed starting in Generation VI due to the games now using the handheld's system settings. Yellow's Earphone1 option is the equivalent to Stereo in later games. Earphone2 and Earphone3 instead focus the audio to the left and right earphones, respectively. [Explanation] 
output: This setting controls the audio output of the game.