In the start of you're Adventure, you recieve two music CDs
of all the music in the game for you're entertainment =D

But if you still want to listen to the music when not on the game,
Lookies here!
Game's Soundtrack 1
Title Screen Theme
Intense Situation Theme (Boss Gone Psycho, SSJ Abu Battle)
Peaceful Hamster Heaven Theme (Hamster Heaven, Maxwell's Story)
Why is the World So Cruel Theme (Abu's Story, Boss's Story)
Hamster Heck Theme (Reaper Ham's Story)
Preppy Punks Theme (..Used a lot..  Usually for Punk Ham)
Sunny Beach Theme (Oxnard's Story, Beach-y Maps)
Mission Theme (Used when players get a new Main Quest)
Japanese Theme (Abu's Dojo, Alex's Theme)
Japanese Perverts Rule All Theme (Japanese Pervert Emotion)
Game's Soundtrack 2
DBZ Rip Theme (SSJ Ham Battle)
Space Areana Theme (Un-SSJ Abu Battle)
Race Theme (Races)
Hyper Theme (When in Hyper Transformation)
Japanese Town Theme (Not Used Yet)
Game's Theme? (Not Used Yet)
Credits (Not Used Yet)
Punk Ham's Battle Theme (Battle with Punk Ham...Like, Duh)
Hamha Town Theme (Hamha Town, Website's Main Music)
Hamtopia (the place) Theme (Not Used Yet)