Phantasy Star 2 Code List:

ATBA-AA4R	Master Code (Must be Enabled)
BXJA-AA26	Everything is Free
RG8A-A60R	Everything at the Armor Shop is Free
RG9T-A60J	Everything at the Tool Shop is Free
RG7T-A6V2	Everything at the Weapon Shop is Free
AL6T-AA50	Hospitals are Free
AL5T-AA76	Cloning is Free
AMFT-AA4G	Teleporting is Free
CJZT-AA2N	Physical Strikes do not reduce HP
CJ0A-AA2Y	Posionous Strikes do not reduce HP
CV2T-AA5R	Damage Tiles do not do Damage
BCXA-AA2L	Do all Peaceful Spells, regardless of TP, TP is deducted
RGZA-A6XL	Do all Peaceful Spells if you have enough TP, TP is not deducted
CTWT-AA3L	Battle Spells do not reduce TP
AJOT-AA4W	Players can not be Paralyzed
REYA-A6TY	Enemies die with one hit
KAYA-AS2R	Your regular attacks are more powerful (1 of 2)
GJYA-AAC8	Your regular attacks are more powerful (2 of 2)
KAYA-AM2R	Your regular attacks are much more powerful (1 of 2)
BAYA-AAC8	Your regular attacks are much more powerful (2 of 2)
GJYA-AACJ	All Battle Spells are 2 times as powerful
G2YA-AACJ	All Battle Spells are 4 times as powerful
FCYA-ACCJ	All Battle Spells are 1/2 times as powerful
L2YA-AECJ	All Battle Spells are 1/4 times as powerful