Ruka has released a new test version of his NesterJ emulator, version 1.20a Alpha. NesterJ is an emulator for emulating Nintendo NES console on your PSP. It is the best NES emulator available for your PSP currently. In this version, Ruka is trying to add the long-waited WiFi battle function. This test version is just for testing that out. Your feedback is needed. Here comes the notice from Ruka:

About WiFi network play:

Limitations
[Major Problems]

* The game will stop if too many communications are encountered. (This is not a hang-up, but the refresh of the screen is stopped.)
To recover from this problem, just press the Home button to exit.

A patched version will be released when the problem is addressed.

[Minor Problems]

* Sound processing is changed. Some changes in sound are present.
* UI of the WiFi Network is not very friendly.
* Cannot select player (just thought so, haven't tried)
* When WiFi Network Play starts, you will not be able to return to local play. The only way to fix is to exit NesterJ and start again.
* Communication timing is not satisfactory yet. (still in adjustment)
* You can still use functions that should not be used in WiFi mode, such as State Load and ROM selection.