Any software for 8bit music or sounds effects free to use?

I tried beepbox.co and even tho it looks much simpler than others, it's still too complex for me. Do you know any so simple that someone who never done anything in audio be able to use it?
Or just a free pack of music free to use without crediting?

I've checked out this one before, it has a built in tutorial: http://boscaceoil.net/
Edit: for 8bit sound effects, there's also this: https://www.bfxr.net/

Thanks, simple enough for me :3

freesound.org for some music and lot's of public domain sound effects.

For music check out YouTube's public domain collection, lots of great stuff in there!