By doing a quick search I was able to track down codes for unlocking enemy range, battle saves, weapon triangle, and map affinity on hard mode. Here's the list: Enable Enemy Range on Hard Mode 04191AC8 28000003 04052C98 28000003 04067C5C 28000003 Enable Weapon Triangle on Hard Mode 0402A8A8 28000003 Enable Map Affinity on Hard Mode 040F97D0 28000003 04119440 28000003 Enable Battle Save on Hard Mode* 04025DBC 2C000003 0404B664 28000003 04025468 28000003 04025720 28000003 04025814 2C000003