The creator of the hack, Drayano, included several specific codes in the official documentation to reduce grinding and speed up the Johto experience:
: Prevents the slow "draining" animation of health or experience bars in Gen 4. 12265A80 00001C20 12265A8E 00001C20 12081750 00001C21 Essential Gameplay Cheats
: If a rematch won't trigger, reset the trainer's state by opening and closing your party menu or bag before talking to them again. Community Perspectives Cheats De Pokemon Sacred Gold
These codes are standard for the base HeartGold game but are widely used in Sacred Gold runs: : Press Select to get 999,999 Poké Dollars. 99x Rare Candies : Hold L+R to fill your medicine pocket. Walk Through Walls : Hold L to move over any obstacle.
: If using a flashcart like R4, use ID IPKE 66972395 for the Complete version or IPKE 7BAC813A for the Classic version. The creator of the hack, Drayano, included several
: Hold R while talking to a generic trainer to battle them again instantly. Useful for experience grinding. 02040EA8 F7FF68E0 94000130 FEFF0000 02040EA8 E0002000 D0000000 00000000
: Disables wild battles outside of buildings. Critical Tips for Emulators 99x Rare Candies : Hold L+R to fill your medicine pocket
: Makes dialogue appear immediately without scrolling. 12002346 00002100 120202EE 00001C0C (and remaining lines)