I haven't checked up much on 3DS in awhile, but Sega GameGear games have arrived. Fans can now get Sonic The Hedgehog: Triple Trouble. Despite the first couple of Sonic games on GameGear being pretty awful, I really liked Triple Trouble. I actually think it's better than Sonic The Hedgehog 3 on which this is sorta based on.
The GameGear version of Shinobi is also up for 3DS fans. I never got into the series too much so I'm not very excited for it.
Then lastly for 3DS is Dragon Crystal which is a bit like Zelda Meets Final Fantasy.
Samurai Showdown IV: Amakusa's Revenge is available on the Wii's Virtual Console. Never played IV, but I liked the first two games.
The only original game this week is Pirates Assault for DSiWare. Doesn't look very interesting to be honest.