Since the demo disabled the main menu (preventing you from setting Gambits or using the License Board), these codes were the only way to "peek behind the curtain". Cheat Type Action Replay MAX Code BT8P-947Y-75NAH / FX7X-75QG-UR6JC Vaan: Infinite HP GUP6-9675-PBC60 / 9G4J-BMEP-YFDFV Vaan: Infinite MP Z79U-DWWU-7ZBGU / DF8M-1Y60-8Z453 Ashe: Max HP X320-YA1Z-B52VE / G3VG-1WH1-RX3U3 Basch: Quick Level Up Z38J-YQTZ-6TBQ3 / 7F0V-ZKXK-URA8V
Searching for "cheats" for the often leads players to discover that, unlike the full game, this preview disc—originally bundled with Dragon Quest VIII in North America—doesn't have traditional "button combo" cheat codes. Instead, players used external hardware like Action Replay MAX to break the demo’s limitations. Action Replay MAX Codes for the PS2 Demo
For the modern experience with built-in "cheats" like 4x speed and Max LP, it is recommended to look at Final Fantasy XII: The Zodiac Age on modern consoles, which integrates these as "QoL" features.
Note: These specific codes were hosted by Codejunkies and are intended solely for the North American demo disc.
: In the Phon Coast scenario, your goal is to hunt a "Rockeater". To find it, you must kill three Sleipnirs first. In the final game, this boss was renamed Tyranorox and moved to the Henne Mines.
: Vaan can summon Hashmal and Ashe can summon Belias in their respective scenarios. In the final game, summons are tied to the License Board rather than specific characters by default.