Originally Posted by ULTROS!
I believe this game is harder than the PSP version (going by Innocent Sin, it has an easy mode).
Eternal Punishment PSP had proper balancing, and Hard mode was harder than the PS1 version. Also the new content is very worthwhile and cool, unlike ISP. Tons of new bosses, most of them Eldrich/Lovecraftian in nature, man those Tatsuya Scenarios were so cool.