DJ3K

 (also known as DJ3000) was an instrumental mini-game in Club Penguin Online. It could be found in the Dance Club on the Old Client. It could sometimes be accessed in the New Client during parties, instead of SoundStudio.

Gameplay
Players could click the various buttons in the DJ booth to make music. The better the music sounded, the more coins the player would earn.

How good the music sounded was shown by what the penguin or puffle were doing and the lights in the background.

Records
Players could buy records in the Game Upgrades catalog for 75 coins, which allowed more styles of music to be played in-game. There were 7 records available, which included Jungle, Funky, Festival, Reggaetron, Desi-bel, House Blend and Monster Muzak.

Trivia

 * You could bring your Yellow Puffle along in the game and it would dance.
 * The name DJ3K means Disc Jockey 3000, as the letter "K" stands for thousand (this may mean it was made by Gary considering that most of his gadgets ended with the number 3000).
 * The igloo playlist did not work because it was replaced with the SoundStudio track list in New Client.