The new Atari and Sega retro consoles have bonuses and not so much a bonus. The Atari has bout 76 games in the machine itself, most of which are fun but not really the original games so have several flaws and are considered a miss on their part. The Sega however has some good games built in, and you can place cartridges in the slot on top as on a regular Sega Genesis. The Atari can not do that, and plays only built in games. My opinion is that both are rip offs of the originals – hardly a comparison.
Speaking of comparisons, I am going to compare old and new games here on Chaos is Gaming, so come back often to read them.