I have installed the extension, but it's not showing up in Photoshop. I even rebooted my system. I have Photoshop 5 Extended.
Please go to Window>Extensions>Level Up for Photoshop to open the game.
Thanks for trying it out!
I discovered the issue. I had a CS5 Service Manager and a CS5.5 Service Manager folder. I moved it to the CS5 and it opened fine. Thanks!