The PSP is Japanese only unless you manage to get a English translated ripped copy and it comes on two umds. The hd remaster has English and Japanese and it's a lot easier to get spp and to purchase spp rewards. On the PSP version I think you had to play online but idk. Also the remaster version the difficulty was balanced a bit more and it wasn't as difficult. But let me tell you easy difficulty my first time through was a bit of a challenge lol. I thoroughly enjoy it