Hints:

Random name entry:
     Highlight "Determine" at the name entry screen, then press L2 + R2.

Maximum potch:
     Note:  You  must  have  already recruited the armor shop owner to
your  armies  cause for this trick. Once this has been done, go to his
shop. This glitch involves some simple calculations, use the following
example  as  a  guide  to see how it is done. Equip one character with
Dragon  Armor  (23,000  potch),  and make sure that at least two other
characters  have  no  armor  equipped,  but can wear Draqon Armor. You
should  also  have  23,000 to 30,000 potch. Talk to the armorer, go to
buy,  then  choose to purchase Dragon Armor. When prompted to place it
in the bag or to equip it, choose to equip it on the character already
wearing Dragon Armor. When prompted to sell the old armor or put it in
the bag, cancel the action. You should still be in buying mode for the
armor.  Simply purchase the two armorless characters Dragon Armor. The
potch meter will reset to somewhere around 999,999.

Recruiting Clive:
     When  trying to recruit the 108 stars, make sure in Muse you talk
to Clive. If you do not do this he will not appear in South Window and
you can never get him.

McDohl appearance:
     McDohl,  the  Hero from Suikoden, appears in the game if you have
collected  all  108  characters  from  the  first  Suikoden. Load your
previous  Suikoden game data when prompted after starting a game. Play
through  the game until you have gone over to Gregminster and have met
their  leader.  Then, go to Banner Village and talk to Ko, the boy who
is dressed similarly to you. After, go over to the east side of Banner
where  the dock is located. There will be a man, Gremio, blocking your
path  (if  not  him, it will be Ellie). Return to Ko, and he will help
you  get  past the man. That should lead to McDohl. McDohl and Viktor,
like others, will make their second appearance in the series.

     If  you  load data from the first Suikoden without having all 108
characters,  he  will  be called RcDohl. But other than the name he is
the  same  person.  McDohl  (or  RcDohl), after returning Ko to banner
village,  will  only join you again if you talk to him in Gregminster.
If  you  have  him leave your party afterwards, you have to go all the
way back to Gregminster to ask him fight with you again.

     To  get  McDohl in your party, you do not need all 108 characters
from  the  first game. However, when you get him due to a text parsing
error in the game, the first letter in McDohl will be the first letter
of  his  name  in the first game (for instance, my character was named
Daros, so in the second game, his name is DcDohl). This has nothing to
do with the number of characters.

Best Ending:
     To  get  the best ending, you must have all 108 characters before
you  talk to Shu about the Rockaxe mission. Also when you near the end
of  Rockaxe  Castle, when Nanami jumps out to protect you from Gorudo,
you must answer very quickly (doesn't matter which answer you choose).
If  you  did this correctly, after Dr. Huan reports of her unfortunate
conditon, he should ask to talk to Shu in private.

     Did  all  that?  Alright,  then once you've beaten the game, head
back  to  Tenzan Path (northwest of Kyaro) and return to that place by
the waterfall. Jowy's there, of course, and you'll go into a duel with
him.  Just  keep on defending throughout it. After that, he'll ask you
to  take  his  Black Sword Rune. Keep on refusing. Once you've refused
enough, Leknaat will appear. I won't spoil the rest, but those are the
requirements for getting the best ending.

Early Level Up Trick:
     When  you  are  spying  on  the Highland camp, at the end you get
attacked  by  Highland  soldiers.  After you beat them, Jowy will hold
them  off  while you run to Nanami. When you reach her, you fight more
Highlands(use  Bright  Shield  to  defeat them easily). After that she
asks  where  Jowy  is. Reply ".....", and more Highlands appear. After
the  battle  she  asks  you  again. Keep replying "...." to fight more
Highlands every time. Keep using Bright Sheild until it runs out, then
use  Flaming  Arrows  from the fire rune. After the runes run out, use
Family  Attack  on the one with the spear and just attack the rest.(if
you're  not  around  level  20 this can be difficult)Anyway, the first
couple  battles  should give close to 1000 experience each. Keep doing
that  until  your  levels are pretty high(or they stop giving you less
than 100 experience).

Recruit Tetsu:
     To  recruit  Tetsu  get  Alex (the item keeper) in your group and
when  he  sells fried tacos buy 3. Next go to Lakewest and keep giving
them to your hero. Once you done that steam should start coming out of
your hero. Then go and talk to Tetsu and he will ask if you like baths
and  answer  I love baths then he will say somethings and will build a
sauna  for  you.  The sauna is where you enter in the front not by the
bar

Random Teleportation Trick:
     When  you  get  Viki  in  your  group and ask her to teleport you
somewhere,  once  in a while she will teleport you in the wrong place.
One  of  which  is  a hidden room in Radat town. Here you'll find many
nice items.

Fried Tacos:
     Fried  tacos are also immediately more available at two rivers at
kobold item store.

----------------------------------------------------------------------

Hints:

Get Badeux:
     Go  to the matilda path with shiro or abizboah and he will say "I
hear a voice" and he will join you.

Hai yo cooking tips:
     Go to lakewest in takis house on the wall you will find the three
couse  meal recipe. In the contests always use these foods: Ice cream,
No seasoning, Tomato soup (if you have mikimoku) and 3 course meal and
you should get a total score of 55 - 59

2000-4000 damage:
     Have  Camus  and  someone  with  the thunder rune do the the last
spell and when they do their spells they will attack together.

The best battle teams: 
Heros-shu, Pesmerga 
Viktor, Hanna, Jess, 
Ridley, Adlai, Apple 
Kiba, Klaus, Yam Koo 
Flik, Nanami Jeane 
Gorge, Humphrey, 
and do any other you like 

Easy Luca Blight Battle:
     Equip  the fire sealing rune with the main character and when you
battle Luca his fire damage will do zero.

Find Vincent:
Take Simone to Radat Docks. 

Attack togther:
Use any of these: 
Hero + Hoi 
Flik + Viktor 
Tomo + Tsai 
Lo wen + Gjim 
Gengen + Gobocha 
Vincent + Simone 
Sigfried + Feather 
Camus + Miklotov 

Easy last battle:
     Against  the  three  headed beast have somone cast canopy defense
and every time the monster attacks a blue wall surrounds the party and
it  does  0  damage  and  if  you also kill the flying rune the damage
almost halfs.

Recruit Boris:
     Boris  is  actually  Ridleys son and if you want all the stars of
destiny get him when your sleeping in tinto nanimi will ask you to run
away  and  if you accept you will leave a note and the blinking mirror
on  nanimis  bed  then  leave  when  you get past tinto your hero will
callapse  and nanimi carries you keep going then in Drakemouth village
you  rest  in  a  house  then  you are awakened by a noise then you go
outside  only to be hit buy a sword and you are asked by viktor or Shu
to  come  back  if you do go back Ridley will greet you but if you run
away  Shu  tells the hero that Ridley died protecting Lord Houser then
Go to tinto and you will meet Boris