Infinite Duelist Points (DP) DP is the in-game currency, used to buy card packs. Normally, you earn 1000–5000 DP per win, while the best packs (like the "Ultimate" pack) cost 9999 DP. This code maxes out your DP.
Effect: Sets DP to 999,999,999. You will never worry about buying packs again.
All Guardian Stars Unlocked Guardian stars (Sun, Moon, Fire, Water, etc.) influence fusion and attack boosts. This code unlocks all 15 stars for every monster in your possession.
| Problem | Likely Cause | Solution |
|--------|--------------|----------|
| Code does nothing | Wrong region (PAL vs NTSC) | Verify your ROM or disc region |
| Game freezes at start | Master code missing or incorrect | Re-enter Master Code exactly |
| Cards appear as "Empty" | Wrong card ID or incomplete trunk code | Use 800AF350 prefix correctly |
| Save file corrupted after code use | Cheat overwrote critical memory location | Reload a backup; avoid permanent codes |
Slot 1 card code format:
800C6D9A XXXX (replace XXXX with card ID) Yu-gi-oh Forbidden Memories Gameshark Codes
Example – Blue-Eyes White Dragon (ID: 0013)
800C6D9A 0013
Card IDs range from 0000 to 02D1 (721 cards).
Common IDs:
0001 – Dark Magician
0013 – Blue-Eyes
001B – Black Skull Dragon
00C9 – Meteor B. Dragon
Fusion Always Works (Even for impossible combos) Normally, fusion requires specific combinations. This code bypasses logic and forces a valid fusion outcome from any two cards.
Max Star Level for Any Monster Every monster becomes Level 8 or higher, making them immune to many destruction effects (though Forbidden Memories mostly ignores star levels outside of Meadow Mage’s ability). Infinite Duelist Points (DP) DP is the in-game
80095EB0 0B1A
80095EB2 0100
D00E79D4 0100
800786D0 0001
The original PS1 version of Forbidden Memories does not contain playable Egyptian God Cards (Obelisk, Slifer, Ra) in the standard game data. However, testing with Gameshark codes has revealed placeholder entries.
These cards have no artwork, crash the game when played, or show as "???". But for completionists:
Do not attempt to summon them – they freeze the game. Instead, treat these as developer fossils.
Infinite Life Points (LP) Your LP will not drop below 999,999. Effect: Sets DP to 999,999,999
Instant Win (Press Select + L1) Finish any duel immediately, even against Heishin or Seto.
Opponent Always Loses (Opponent’s LP = 0 at start) If you want no challenge at all.
Always Have 5 Cards in Hand Never run out of options.