Currently a student, I'm trying to put together a game for iOS. From everywhere I've read, it seems any game's sound and art are apart of their IP and covered under their Copyright.

That being said, say I wanted to use the coin sound effect from the original Mario (less than 1s long and used sparsely)... would anyone really care? Having no experience with this, I'm just wondering if cases like this are treated like "Ya you're driving slightly over the speed limit, but nobody cares" or as "you stole that car".

Thanks for any insight anyone may be able to provide.