Cash is the primary in-game currency in Guitar Hero II. You earn cash by successfully completing songs in Career Mode, with higher scores and better star ratings yielding more money. Playing on harder difficulties also increases your cash rewards. This cash is essential for purchasing new guitars, character outfits, and bonus songs from 'The Store'. To maximize your earnings, always aim for the highest possible score and star rating on every song. Replaying songs on higher difficulties is a great way to farm cash if you're looking to unlock everything quickly.
