While in the USA we only have a free Sonic Boom theme from SEGA to apply to our handhelds, SEGA of Japan is really using the theme service and giving older SEGA console gamers the goods. Above is the video of the SEGA Saturn theme that was recently revealed. The song playing the in back is from Sonic R.
Below is the video of the SEGA Mark III (aka Master System in the West) which features the always delightful Alex Kidd (including its music). Will these themes hit the American or European eShop? I really do hope so, with these and the awesome SEGA 3D Classics; the Nintendo 3DS is becoming a nice nostalgic gaming machine.
The themes are now out in the Japanese eShop and retail for 200 yen each (a little over $1.50).