After you beat the game, you will have several things unlocked at the main menu.
1. You can load your game if you've saved it after beating Anibus in Aumaan, you can play back through it with the starting Jehuty, Jehuty ver. 2(after obtainig Zero Shift), Damaged Jehuty(form while fighting Anubis going to Phobos), and Naked Jehuty(ultimate form). You can also choose to start with or without all subweapons you obtained playing through the last game.
2. You have also unlocked Versus mode. This is fun considering that you can play as Jehuty, Jehuty ver. 2, Damaged Jehuty, Vic Viper, Ardjet,Nephtis, and Anubis right from the start! There are also 3 unlockable characters. The first is Naked Jehuty. This unlocked after you find the other entrance to Aumaan(not the big glowing one), go down, shoot the lasers blocking the entrance, go in and fight and defeat him. Look for a hologram of him. Collect it, and the screen will say that he's been unlocked. The next is Inhert. In the Lloyd's lab, just before you reach him in the second room of moving pillars. Defeat the enemies, and look around, and you'll see a pillar retract, and there will be a hologram of him in there. The last is Aumaan Anubis. Play through the game again with all the subweapons. In the canyon where you have to shut down Shield Generators, you will see a symbol for Metatron on your Pause Menu. Pay no attention to the green arrow in front of you that shows you wh!
ere your main objectives are. You will fight some menial enemies on the way there, but you will find a huge rock wall in your way. So sit on the ground and have a little fun with your Vector Cannon, if you know what I mean. If the wall doesn't break, you're shooting at the wrong wall. You will come to an area where it looks like there is a train tunnel going to the left and right. Go into the left one and you'll enter a wind tunnel. Defeat all the enemies, and go to the "Exit" designated by your green arrow. You'll end up outside. Fight and defeat Aumaan Anubis. Look around for the hologram, and he's yours.
3.You have also unlocked Extra Missions. This is a collection of extra missions for each of your forms of Jehuty. These consist of Battle, Endurance, Boss Battles, and Boss Sequence fights. These are all timed.Fun stuff!