In the game there are 16 CD's to collect. When you found one of them, you'll notice some weird group and song names on the front. Probably you'll get the references but I will write for who dont know the real groups and songs or the albums.

1. Tigera – "Cowgirls From Heaven" -------> Pantera – "Cowboys From Hell"
2. Boo Biters – "The Color and the Shade" -------> Foo Fighters – "The Color And the Shape"
3. Shallow Purple – "AI" ------> Deep Purple – "Machine Head"
4. RGB Day – "American Genius" -------> Green Day – "American Idiot"
5. Shotguns N’ Lilies – "Chinese Virus" -------> Guns N’ Roses – "Chinese Democracy"
6. System Shutdown – "Pad Thai" --------> System of a Down – "Chop Suey!"
7. Player – "Angel of Cookies" ---------> Slayer – "Angel of Death"
8. Nopath – "Submission" ---------> Opeth – "By The Pain I See In Others"
9. Motorcycle – "Trace of Plaids" --------> Motörhead – "Ace of Spades"
10. Moses Rabbi – "Abiding the Law" --------> Judas Priest – "Breaking The Law"
11. Mecabeth – "Rest N Peace" --------> Megadeth – "Rust In Peace"
12. Mathematica – "Master of Parabolas" --------> Metallica – "Master of Puppets"
13. Lincoln Parking – "Hybrid Theorem" --------> Linkin Park – "Hybrid Theory"
14. Black Saturday – "Parasol" --------> Black Sabbath – "Paranoid"
15. Nap Theater – "Pull Me Up" --------> Dream Theater – "Pull Me Under"
16. Corn – "Peach on a Dish" --------> Korn – "Freak on a Leash"