Action won't detect game; MUGEN

[Hoopwah]

For some reason, my copy of Action won't detect MUGEN, the open source fighting game engine.

I've seen other people record MUGEN with Action. Is there any way I can give Action the process that I want it to record, and then it will detect it that way? I tried running it in windowed mode to record it, but it is much too laggy to do anything with.

Thanks.

[radi]

Could you provide me a link to this game?

[Hoopwah]

I'm actually playing a game using the MUGEN engine. The engine, MUGEN can be found here:

The game I'm playing and trying to record is called "The Black Heart":

Although the game is its own entity, both the process and tab on the taskbar will be "MUGEN" (similar to how Source games such as Team Fortress 2 use hl2.exe).