Guitar Hero II features several hidden cheats that can be entered from the 'Cheats' menu in the 'Options' section. These cheats can alter gameplay, unlock content, or simply provide some fun. Examples include 'Performance Mode' (removes the note highway), 'Hyperspeed' (notes scroll faster), and 'Air Guitar' (removes the guitar model). While using cheats often disables saving scores, they can be great for practice or just messing around. Additionally, there are a few secret characters and guitars that can only be unlocked by achieving specific, challenging milestones in Career Mode, beyond just purchasing them from the store. Explore online communities for a full list of these secrets.
