Check this out: you can still buy new Sega Mega Drive consoles. These ones are a fraction of the size of the original and come with more than one built-in game.
Relive those 16-bit days and dig out old Genesis cartridges from the storage box in the loft. They may need a good blow first, but it will be worth it.
The Sega MegaDrive Console by AtGames, is available from Firebox for £35 and has ten pre-loaded classics from Golden Axe to Streets of Rage. Old school.
It also comes with two control pads and connects to the TV through a simple composite-video connection.
Alternatively, have a hunt on eBay for the larger 1990's model, there's quite a few out there. ®