NesterJ, the nearly perfect NES emulator by Ruka, has been making nostalgic PSP owners happy for over a year now and is a staple of PSP homebrew. Today, it has taken a couple more steps towards being the ideal emulator on the PSP.  3 months ago, Ruka had mentioned that he was working on NesterJ v1.20 and intended it to have Ad-Hoc WiFi support for 1.0/1.50 PSP's (kernel access). Thanks to the recent downgrader, this is a great way to experience the joys of homebrew gaming for the PSP!

As if that wasn't enough, Ruka also says that thanks to improvements in GPU processing, there's about a 20% increase in speed - which is saying something since NesterJ already ran a fair share of NES games at full speed with frameskip disabled. Previous problems with sound timing were also fixed, but is still a problem with Network Play.

Courtesy of our own Jeff C., here are the translated details from the changelog:

• Drawing speed up by 20% when using GPU
• Sound processing in single play mode has been modified
• Network communication is still in-development and needs adjustment
• If you don't want to use frameskip during Network Play, set CPU to 333mhz
  
• Misc.

How to start WiFi Network Play:

1. Turn on your WiFi switch and set your PSP to AdHoc Mode (choose the same channel as your co-player)
2. Start NesterJ and choose your ROM
3. Select "Wifi Network Play(Adhoc)"
4. Wait until you get the message "sceNetInit() done" - this means the PSP is in Network Standby
5. Repeat steps 1 - 4 for the second player
   
6. Player 2: Press Circle to send a connection request
7. Player 1: After getting the request from Player 2, press the Circle button
   

Obviously, identical ROMs are needed and if the emulator settings on all the PSP's are not the same, the synchronization might fail.