Cheats Suikoden 2 : Instant level 99

When a character is at Lv. 39 (Lv. 49 with a Fortune rune), go to L'Renouille. Fight a group of Highland x6. Kill off all party members but him, then defeat the enemy. His level should shoot up to 99.

Cheats Suikoden 2 : extra boots

Before jumping off the cliff at the start of the game unequip the boots on Riou and equip them on Jowy. When Pohl asks you to get two pairs of boots take three from Barbara. Equip two pairs of boots on Riou and talk to Barbara again, she will allow you to take three more pairs of boots resulting in four free pairs.

Cheat suikoden 2 : Hidden scenes

Bring Valeria to Banner Village to recruit Anita.
Bring Killey to Gregminster to recruit Lorelai.
Defeat Rowd in Kyaro when he comes to arrest you.
Speak to Gengen before you speak to Leona after you are asked to buy some flour from Ryube.
Take Flik or Viktor to Lakewest when recruiting Hix and Tengaar.
When running from the Unicorn Brigade, go north instead of east and examine just to the right of where you'll later leave the X mark. This is also a time saver.
Talk to Shu first the night before your battle with Luca Blight. Your responses trigger an extra scene with Apple the next morning.
Talk to Leona the night before you fight Luca.
Talk to Leona the night before retaking Greenhill.
Take different "pure women" with you to recruit Sigfried. We recommend Sierra or Mikumiku.

Cheat suikoden 2 : Hidden room in radat

When Viki teleports the hero from the headquarters to anywhere in the game, she sometimes mistakenly teleports you and says, "huh?". If you're lucky, you get teleported to the secret room in Radat, where there are some neat items.