From the looks of it, GOD EATER is Namco's take on Capcom's Monster Hunter. A game that looks to borrow so heavily from the MH franchise really needs to create its own identity as a PSP title.
What better way to do that than via customised bullets and customised clothes.
The "Bullet Edit" feature allows players to customise their bullets with five different "Modules" with settings like Type, Elemental, Distance, Path, etc.
There are also custom costumes, which do not affect your character's abilities, but might affect yours.
GOD EATER is out this February in Japan.