benefit of the "doubt" answer: well done, you made accurate covers. the sounds are boring though.
detriment of the almost certainty answer:
i think these are just midis run through some 8-bit-izer.
waffles94, if you weren't aware, most of us here are writing our own songs line by line, tick by tick, using our ears. it isn't a simple processual transformation applied to an existing work (even if people are doing covers, they are transcribing them by ear, creating all the instruments themselves, and putting the notes into the software themselves). so your youtube channel is not really related to what we do here. i also think it's fairly disingenuous to not mention anywhere on your youtube channel what it is you are doing and how easy it is to do it.
if you listen to other people's "covers" of the same songs that you "covered", they sound exactly the same as yours, because they were made in exactly the same way:
https://www.youtube.com/watch?v=e-OmoW8l0pQ
if you want to learn to do it properly, stick around and learn some things. be warned, it takes effort to get good at actually writing music. if you just want people to say "cool! you are a talented nerd genius!" try posting them on your facebook page or something.
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