Pokémon HeartGold Version Glitches

Silent Surfing
This glitch causes the music while you are surfing to temporarily disappear. To do it, de-register the GB Sounds (if registered), buy at least 10 Max Repels, and go to Route 20 with the GB Sounds switched off. Just before you surf onto Route 19, which leads to Route 20, use a Max Repel (the glitch fails if you encounter a wild Pokemon). As soon as you get to Route 20, activate the GB Sounds through the Bag. As soon as you get to Cinnabar Island, do not hit land, and while still surfing, de-activate the GB Sounds. There will be no music. The only way to fix the glitch is to hit land and walk into the Pokemon Center, then walk straight out.