(http://i.imgur.com/jOyPESS.jpg)
This is a pretty comprehensive collection. Most instruments should be there, though I might have missed some when weeding through all the unlabeled audio files from the Animal Forest ROM. All instruments ought to be in tune and should loop well.
I didn't include K.K. Slider voice samples as there's an existing soundfont for that, though I probably should have in hindsight
There are two formats: SF2 and EXS. SF2 is the "standard" soundfont format and works in a lot of things. EXS is a format used by Apple Logic Pro and really only works in Logic's EXS24 sampler with any ease. This was originally created exclusively for EXS24, but I ran it through an automatic converter to make the SF2 version so more people could use it. I can't guarantee that the SF2 version is up to par because I think a few are missing due to errors in the conversion process and because I haven't tested them all. I tested a few though and they seem to be good.
download (http://corymartin.net/misc/)