Summon Night Codes -

More money:
Hold Up + X and turn on the PlayStation. The title screen will change colors to confirm correct code entry. Start a new game and select a character. Enter juru (ji + small yu + ru all in Hiragana) as a name to get an additional 10,000 GP.

More experience:
Hold Up + X and turn on the PlayStation. The title screen will change colors to confirm correct code entry. Start a new game and select a character. Enter hirokazu (all in Hiragana) as a name to get an additional 5,000 experience points.

All summon spells:
Hold Up + X and turn on the PlayStation. The title screen will change colors to confirm correct code entry. Start a new game and select a character. Enter ERUGO no ou (ERUGO in Katakana + no in Hiragana + ou in Kanji, with no space between all the Kana and Kanji).

Summon Night Stone units:
Hold Up + X and turn on the PlayStation. The title screen will change colors to confirm correct code entry. Start a new game and select a character. Enter BANPURE seki (BANPURE in Katakana + seki in Kanji, with no space between all the Kana and Kanji) to get 30 units of every Summon Night Stone.

Skip conversations:
Hold Select and press Square, Circle, X, Triangle when the location appears before a conversation begins. Press X during the conversation to advance through it.