Here's what you might have missed regarding 3DS announcements from last night's Nintendo Direct:
Dillon's Dead-Heat Breakers was announced and it continues to mix action with tower defence but with some added racing now in a great looking package, coming May 25th to Nintendo 3DS:
Bowser's Inside Story is getting a remastered version with a new story starring Bowser Junior. The original was great, so this should be a must have if you didn't play it already. It's coming next year.
Detective Pikachu is coming later this month and it still weirds me out to hear that voice on a Pikachu. Look for it on March 23rd.
Finally, Luigi's Mansion is making a comeback after Dark Moon but this time it's a port of the original Gamecube game on Nintendo's 3DS. You'll explore a crazy mansion and suck up all the otherworldy inhabitants thanks to your trusty vacuum in search of Mario. It's coming later this year.