So, here's an enhancement suggestion. Currently, the "extract" (and, of course, the "extract and decompile") options automatically do ALL the .rpa files. When I'm poking around, frequently I really only want to extract and decompile the scripts. I'd rather just leave the images and other stuff alone. Obviously, if it's one big archive.rpa, that'd be hard, but many games do images, scripts and other stuff separately.
Right now, if there's a scripts.rpa and all I want is to do that one, what I have to do is to move all the other .rpa files somewhere else, use UnRen, and then put those files back. It'd be nice if there was a way to choose which files to operate on. This might be part of "Extract and Decompile" - if you're doing that, it's possible that all you care about is the scripts.
Just my $0.02 worth on a very nice tool.