Welcome to the cheats for Karaoke Revolution: Volume 3 for the PlayStation 2. Below are the cheats.
Bonus songs
Successfully complete Showtime mode weel to unlock China Grove, In The Midnight Hour, and Snake Eater (from Metal Gear Solid 3).
Music Video venue
Get a "Platinum" rank on a song to unlock the Music Video venue in Karaoke, Medley, and Quickplay modes.
Cheat Collection 1
Successfully complete at least one song with a "Platinum" rank in each venue in Showtime mode to unlock the "Cheat Collection 1" option. Then, select the "Cheats" option at the "Extras Menu", select "Cheat Collection 1", then enter one of the following codes to unlock the corresponding cheat option. If you entered the code correctly, you will hear a sound.
Cheat Collection 2
Successfully complete all songs without a "Gold" or "Platinum" rank in each venue in Showtime mode to unlock the "Cheat Collection 2" option. Then, select the "Cheats" option at the "Extras Menu", select "Cheat Collection 2", then enter one of the following codes to unlock the corresponding cheat option. If you entered the code correctly, you will hear a sound.
Cheat Collection 3
Successfully complete all songs with a "Gold" rank in each venue in Showtime mode to unlock the "Cheat Collection 3" option. Then, select the "Cheats" option at the "Extras Menu", select "Cheat Collection 3", then enter one of the following codes to unlock the corresponding cheat option. If you entered the code correctly, you will hear a sound.
Cheat Collection 4
Successfully complete all songs with a "Platinum" rank in each venue in Showtime mode to unlock the "Cheat Collection 4" option. Then, select the "Cheats" option at the "Extras Menu", select "Cheat Collection 4", then enter one of the following codes to unlock the corresponding cheat option. If you entered the code correctly, you will hear a sound.
Easier songs
You can trick the game by humming, rather than singing, at the correct pitch.