You can decompile these models, only with one condition: Do not make models private with this base. Read about share-alike license. Don't be a greedy bastard.
I don't get it. Why aren't the used songs titled? In the flash itself it's just compilation of them all together, so need to search every part with shazam or such. But I mean it was easy just to write them down in the description for the athor themselves? >< It was a bit strange to me personally to read about licenses there and see songs being used just like a random material which doesn't deserves credits or be wished to be found by other people