In Parasite Eve II, at the end of the game (on any mode) the player is awarded a score based on all EXP earned in that playthrough. This score determines which rank the player is awarded, with S being the highest, then running from A down to L, being the lowest. Each rank opens up new weapons, items, and ammunition available for immediate purchase in any shops in the game during any subsequent Replay Mode.
The rank awards are cumulative, so if a player earns a B rank on one playthrough, then starts a new game using that clear save data and earns an A rank in that playthrough, then the next time Replay Mode is started using the new clear save data, both A and B rank items will be available for purchase in the shops. In this way, it is possible to earn every rank available in 13 consecutive playthroughs of the game. However, if you play through the game once more and get the same rank, you will instead be graduated to the next rank. For example, if you attain a B rank in your first playthrough, and then attain a B rank once again on a subsequent playthough with the same save file, you will then receive the A rank rewards for your next playthough.
Some modes also add a rank bonus at the end. Bounty Mode adds 1 extra rank to the player's score, Scavenger Mode adds 2 extra ranks, and Nightmare Mode adds 3 extra ranks. There are no rank bonuses for Normal or Replay Modes. These bonuses are necessary to reach ranks A and S, since it isn't possible to earn higher than rank B on a normal playthrough by earned EXP alone, unless you have at least earned a B rank once.
The item awards are ONLY available in Replay Mode. They will not be available in Bounty, Scavenger, or Nightmare modes (other than what is normally for sale).
|400001+||S||Gunblade, Ringer's Solution, Eau de Toilette|
|200001-400000||A||Hypervelocity, Hunter Goggles, MP Boost2|
|75001-200000||B||MM1, Airburst, Recovery3|
|72001-75000||C||M249, .44 MaedaSP ammo, Cola|
|69001-72000||D||Mongoose, .44 Magnum ammo, Skull Crystal|
|66001-69000||E||AS12, R. Slug ammo, Firefly ammo|
|62001-66000||F||Aya Special, 9mm Spartan ammo, Ofuda|
|57001-62000||G||Javelin, MD Player, Holy Water|
|51100-57000||H||Pyke, Lipstick, Tactical Armor|
|44001-51000||I||Hammer, Belt Pouch, MP Boost1|
|16001-44000||J||M203, Protein Capsule, 9mm Hydra ammo|
|14511-16000||K||M9, M4A1 Rifle Clip Holder, Flare|
|0-14510||L||Monk Robe, Medicine Wheel, Recovery2|