Yeah, AtGames has been pumping out those retro PnPs for a while now. They're all pretty awful, especially their Mega Drive/Genesis systems. Those 80 built-in games? Many are nameless shovelware never originally released on the system.
I don't know if AtGames is intentionally or unintentionally riding the hype but these things could kill off the appeal real quick. If Sega's smart, they'll work out a deal with Nintendo and have 'em release a quality mini-Genesis. That'd be a kick. Dogs and cats working together - mass hysteria!