from what i read, it actually replaces the files for the background. i'll have to read up on that some more to see, maybe it doesnt effect the originals at all.
[EDIT]
omg, just tried the doom game, wow. im not exactly sure what that is, like a port of the PC version? its not an emulator of one of the consoles tho its its own game, runs extremly smooth, i'm quite amazed at that one, i hear that also have Quake. i shall now go in search of Quake.
