Each item has a marker indicating the outfit you can buy the item for. The [P] and [K] naturally stand for 'Punch' and 'Kick', the [S] is for 'Special Outfit' and the [X] icon indicates a 'Cross Over' item. Cross over items you can purchase from either outfit and can be equipped on all outfits, you only have to purchase the item once.

Aura is a customization new to Dark Resurrection, and specificly created with the Japanese online Tekken-Net service in mind (which is probably why it is somewhat bizarre anywhere else). After buying the initial aura, which is White Level 1, players in Japan can use Tekken-Net to buy a chance to level up for 20,000G at the Aura Training Center. Reportedly your chances of actually leveling up are linked to your ghost's winning percentage on the network. If the training is successful you then move up to White Level 2, after maxing out the size you get promoted to a new color and the cycle starts all over again.

Now for the markets outside of Japan, Namco's solution to making the aura work without the network is the Aura Random Change feature. Which is exactly as the name implies... random. After purchasing the initial aura you can at anytime buy the random change to acquire a new color and size level. There is nothing more to it, it doesn't not appear to be linked to your win/loss ratio or how well your ghost does on a particular machine.

When you equip aura all other custom items will be automaticly removed, you can still change outfit colors however. And if having no control over the aura wasn't bad enough, be careful about removing the aura from your character as it will reset to the default White Level 1 next time you choose to use it... it's a bottomless money pit folks!