After the audience with the Emperor, don't go home. Instead, go to Sarady and talk to the man in the upper-right house. You'll get a Fortune Rune.
Alternately, go home and as soon as Ted joins the party, go to Sarady and talk to the man in the upper-right house. You'll get a Prosperity Rune.
In the Japanese version, once you've collected all 8 Old Books you can highlight the 8th volume and press square, circle, triangle and X at the same time to bring up a secret 9th volume.
"Hirotaka Development Diary"
Assumingly Hirotaka refers to producer Hirotaka Ishikawa.
For whatever reason this was removed from the PAL version, most likely from the US version as well then as they're pretty much the same. This was confirmed to work on the PSP I & II version but it should be the exact same as the original PS version.
Try to leave Kraze's mansion without talking to Pahn.
Accept to kill Kwanda at the first option for an extra scene involving Windy.
Accept to kill Milich at the first option for an extra scene involving Camille.
Try to enter Kaku by boat, after the first battle with Teo.
When you return from Kirov with the fire spears, enter the castle by boat.
After being denied entrance to the Dragons Den, enter Antei with less than 200 bits and speak with Vincent.
Take Liukan with you, on your first conversation with Joshua.
Return to the old liberation army's hideout the time you can re-enter Gregminster area.
Enter the lower left house in Lenankamp with Meg in your party.
Talk to the guy on the second floor of the inn at Lenankamp with Krin in your party.
Check on a tombstone in Rockland with Clive in your party.
Visit Sonya right after Teo leaves the house for the first time.
In Gregminster at the start of the game, if you talk to the shopkeeper in the hardware store with Gremio in the party, the shopkeeper will ask Gremio how the banquet was and will say that he will settle Gremio's tab after you get back. It's a cute little setup for Camille. The shopkeeper will only say this if you come to see him before going to see Kraze your first morning working for the Imperial Guard.
Check on the diaries of Pahn, Cleo (locked), Sonya and your own (save point).
Speak to Futch at the barn before meeting Kraze.
Black (Futch's Dragon) reacts differently depending from which side you are talking to him,when he is waiting in the barn along with Futch.
- If you talk to him from the front he'll just growl
- If you talk to him from the right he'll just open his mouth a little bit
- If you talk to him from the left he'll have his mouth open wide
- If you talk to him from the behind he'll stand in his 2 legs and pop out his wings
Also sometimes if you talk to him from the behind he'll make a little crouch.
When you enter to Marie's inn during the time you work under Kraze you'll find 5 soldiers fighting about who is the best General. The guy who admires Teo will give you an extra comment if you talk to him first every time you enter the inn.
Talk to Kraze over and over again (up to six times), after receiving instructions for the Rockland mission.
The woman who runs the armoury in Rockland gives a different dialogue if you approach her behind the counter.
Talk to two men in Rocklands inn with Kanaan in convoy.
Take the captured bandits with you to Kraze instead of Grady for some additional lines.
Krin can be found in the upper left house in Lenankamp at the beginning.
Talk to Onil often, for different hints and comments throughout the whole game.
Leave Kouan, the night Krin is waiting for you outside of Lepan'ts mansion, re-enter and talk to him at the inn. Also, you can get another comment if you back out of sneaking into Lepant's mansion (from the roof) after Krin sets you up to go in.
Talk to Jeane, Lotte, Qlon, Sarah, Zen and Morgan with a level 2 castle, for some quotes you may have never seen before (keep your recruits to a minimum).
If you talk to the hardware store owner in Rikon from the side instead of across the table, he has a special comment instead of opening the shopping menu.
Talk to Anji at Pirate's Island with either just Tai Ho or just Yam Koo in your party.
Talk to a guy in Warrior's village with Flik in your party.
Check on Chandler's and Chapman's goods at your castle, if you have never visited any item and armor store at all.
Rest at one of the coffins at Neclord's castle.
A bed in Qlon Temple.
Both bring an Escape talisman along, when they join your entourage. These two can be used infinite times, as long as you don't drop them in your storehouse ever. They have an "infinite" flag like the Blinking Mirror that will be corrected, if stored. You can hand them over to your comrades, though. (Not that you wouldn't be bombarded with these items ingame either way)
Note that this trick only works when you meet him in Rockland.