Hidden message:
Insert the "Making Of" disc. Wait for 1 minute 28 seconds on Chapter 5, then select "Pause".

Arc The Lad: Unlimited Cure-Alls:
After your first visit to Toyoke forest, keep going back and talking to the Forest Spirit. She will keep giving you a Cure-All each time you talk to her.

Arc The Lad: Characters and Spells:

Arc

Burn Ground (volcanic eruption on enemies)
Total Healing (replenishes HPs)
Gail Flash (mystic forces flashes on enemies)
Slow Enemy (decreases dexterity of enemies)
Meteor Fall (huge meteor clashes on enemies)

Kukuru

Cure (replenishes HPs)
Depoison (cures poison status)
Silent (disables enemy's magic use)
Refresh (cures status)
Ten No Sabaki (hail of explosions)
Resurrection (revives dead party members)
Divide (steals HPs from enemies)

Poco

Ikusa No Kodaiko (raises attack levels on party members)
Arajishi Daiko (laser attack on enemies)
Hero Hero Rappa (huge stone notes drop on enemies)
Ieyashi No Tategoto (replenishes party member's HP)
Noroma No Bass (decreases enemy's dexterity)
Idaten No Okarina (raises party member's dexterity)

Tosh
Oukarai Bakuzan (three deadly slashes to enemy)
Juubakuken (paralyzes enemy)
Shinkuuzan (Illusion attack for enemy at two squares away from Tosh)
Koenzan (Shadow attack to inflict deadly)

Gogen

Explosion (massive explosion against enemies)
Dream Knock (casts "sleep" on enemies)
Diamond Dust (hails of ice thrashes on enemies)
Wind Slasher (cyclones thrash against enemies)
Heat Wall (creates a fire barrier against enemies; see Hints)
Thunder Storm (summons lightning bolts)
Teleport (teleports)

Iga

Shingan Hoo (casts "rock" on enemies"; see Hints)
Taimakoodan (releases lasers against enemies)
Senbuugekishuu (releases a flaming kick to hit all enemies around him)
Ryuusenbaku (summons winds to lift enemies and thrashes them on ground)
Kishin Ryuueiha (throws ground lightning bolt)
Metsushuu Reppa (energy wave attack)

Chongara

Keraku (three elves who heal members)
Monfree (creates tiles for passage)
Fuugin (wind demon; see Hints)
Raigin (thunder demon; see Hints)
Hemogee (transforms enemies into trolls)
Odon (morphs into enemy)

Arc The Lad: Iga's Rock Spell:
Once the "Shingan Hoo" spell (rock spell) is cast on enemies, the "Taimakoodan" spell (laser spell) is enabled/accessible. The laser will attack all the enemies under the rock spell. Note that the Taimakoodan spell is not usable independently.

Arc The Lad: Chongara's Monsters and the 1100+ HP Damage Attack:
Chongara's abilities are unique. He summons enemies of all genera at his will. Though his monsters may not seem as useful at first, his two monsters "Raigin" and "Fuugin" can be quite a deadly combination when used accordingly.

Though it takes some time to summon both Raigin and Fuugin, once they are out, place them around an enemy, preferably a strong one. But note that they must be in a VERITCAL FORMATION (example: Raigin over an enemy, Fuugin underneath the same enemy), in order for the attack to work:   Once they are in a vertical formation, a spell will now be accessible, which can inflict more than 1100 HP damage! Death is inevitable.

Arc The Lad: Chongara's Secret Character:
Chongara also has a secret character that he can summon at only certain times. To access her, you must fight your way through all 50 dungeon levels at Alalatos, and eventually fight her. If you do manage to defeat her (good luck -- you'll need it), she will join your party and Chongara will be able to summon her, but only in certain locations.  But then, you have to go UP though ALL the 50 levels again, in order to get out. If you die, all the hours of work will have gone towards nothing! So be sure to be well prepared before going down there.

Arc The Lad: Talking:
Talk to many of the people when available. If you talk to them annoyingly (over and over), they just might give you some nifty items. For example, the announcer at Needle will eventually get sick of you and will give you a book that will make you immune to all poison statues.

Arc The Lad 2: Item duplication:
Note: Two memory cards are required for this trick. Go to the Arc The Lad Monsters Arena and save your games on both memory cards. As player one, load one memory card. Have player two load the other. Have player two trade an item from his inventory to player one. Save player one's game on both memory cards. Two of the item are now on both save files. Repeat this as many times as needed.

Note: Two memory cards are required for this trick. Copy the saved game with the item to duplicated to the other memory card. Then, start Arc The Lad Monsters Arena with two players. Go to the trading post, trade the item to the chosen player, then save only with the player that received the item. Reset the game and you will have duplicated the item. This can be done with monsters, used to sell items, and make money or duplicate certain items for quick level ups.

Note: Only one memory card is required for this trick. You can duplicate any item from Arc The Lad 2 by using Arc The Lad Monster Arena. Start a two player game. However, you do not need an extra controller since only one person can be in control at a time. When loading data, simply remove your memory card from slot one and place it in slot two. By doing so you trade items to yourself at no loss. This is useful if you get items such as full power fruit, powerful weapons, or powerful monsters. Once you trade items from player two to player one, go to the area and load the data from the card again. You can repeat this as needed. The only items that cannot be traded are personalized ones.

Gameshark Codes

Unlimited H.P. Arc:
80119C4C 0FFF  80119C4E 0FFF
Unlimited M.P. Arc:
80119C50 0FFF  80119C52 0FFF
Max level and Exp. Arc:
80119C38 00FF  80119C40 00FF
Unlimited H.P. Poco:
80119D6E 0FFF  80119D6C 00FF
Unlimited M.P. Poco:
80119D72 0FFF  80119D70 0FFF
Max Level and Exp. Poco:
80119D58 00FF  80119D60 Ffff