Compose a mail by pressing "X" in the mail screen, and send it to yourself. Type "Cipher" in the subject, then type the code in the body of the email. Send the email, and exit back to the main screen(Map screen). If entered correctly, it should give you a card.

Password	Result
Dec. 17, 1986	ChainBubble3
ISNBDUBO	Cloaker SubCard
SIXGAME-O	D.Energy SubCard
ILABCLERSAS	D.Energy SubCard
CENCARLEBBUB	D.Eye SubCard
Legendary Master Shin	DragonSky SP
KNIGSPIAREM	FlickrKck3 B.Card
Star Force, the ultimate power!	Get LeoKingdom SP
NGYNGIWCUS	GhstPulse2 B. Card
ROHNATPE	HeatBall3 B.Card
OSLEGRATE	HeavyCannon B.Card
KMALEETZCP	M. Breath
Brother Action RPG	QnOphicus SP
AURIEFRUTS	Recovery 50 B.Card
PREOBCOPB	SearchEye SubCard
IPHAUEOEUNQC	TailBurner3 B.Card
LAREBARAON	Timebomb1 B.Card
ALPTUNZLA	Unlocker SubCard
NROSIMAMSTU	Unlocker SubCard