Fixing a broken Sega Genesis (Mega Drive) 2 - I finally own one! 

I bought this Sega Genesis off of eBay for extremely cheap. The listing didn't detail what was wrong, and I've never owned one before, so I took a gamble on buying one and fixing it up. I also bought a copy of Sonic the Hedgehog for it as well from a different seller.
Will I be able to get it fixed? How many rabbit holes will I travel down?
I also tried a number of new and fun ideas in this video. Let me know your feedback! Thanks for watching!