85 Games built in, not all are Sega Genesis games. HD cable, you can use your own cartridges! I had a tiny bit of video that is missing from the middle, but I don’t think it’s too important. Lots of Sega games and Master System and Game Gear games! It plays your cartridges great! Save states are included! (I’m not sure how much space is on the console for saves.) You can rewind 7 seconds of your gameplay. Only bonuses are a ‘scanline filter’. I really like this unit. They are available at some retailers, like Best Buy and Target. Will play with your original Sega Controllers. But, the included wireless controllers work well! I was pleasantly surprised. If you’re looking for a great way to play your Sega Genesis collection in HD, this is a great option.