I've been playing Persona 4 Arena since launch and twice now while playing with other people from the community we have come across a nice odd stage that seems to pop up randomly. Here is a video that I took with my phone in a hurry in order to get record of it since we failed last time to do so. This stage only last for one round and then it just randomly crashes for no good reason. You can also notice two characters that look like Noel from BB and a character from Guilty Gears or maybe Ragna. It also appears to have a health bar and some sort of super meter in the bottom. I've also tried to find information on it but I was unable to really find any information on it so anything you guys can find on it would be really cool. Also if you have seen this stage before say so in this topic.

http://www.youtube.com/watch?v=Hf8zucFyWI8&feature=plcp (excuse the crappy camera work.)

As revealed today, the appearance of this stage also apparently wreaks havoc on the PS3 of the host of the room, causing it to heat up a decent bit. Not dangerously from the sounds of it, but still bizarre.

Really? can you post a link or something?

Looks like a debug stage they might have used for testing characters before the proper backgrounds were ready.

@Hailinel said:

Looks like a debug stage they might have used for testing characters before the proper backgrounds were ready.

That seems to be the case, since you can see a outline of Noel from the Blazblue series and another character not in the P4:A roster. Must have been left over during development, or intentionally left in to fill up space on the disk for certification.