You are now President of Nintendo. Congratulations! As you first order of business you...?

mak it so that all DS's r able 2 hav all the things a 3DS has

Legend of Zelda: Majora's Mask 3D gets made, with a better save system. Then get started on a huge Luigi project to have a real Year of Luigi.
....And I guess Pokemon Bank goes out because these fans are annoying as hell. Gamefreak better get their balls off the ground.

mother 3 on the 3ds eshop, majorasman 3d remake

create a mario game where mario, DK, and Bowser realize peach is secretly evil and have to team up to destroy her... and another mario kart game with TONS of new... weapons X3

look at our place in the market and meet up w/ other executives about how to increase our profits based on the bad few years we've had recently

chances are i'd have the games i want to make when i become a video game designer made b/cause ha executive power

Discontinue the Wii U for ever.

Start working on making a game for the fanmade Haron and Allavarr regions! They're both going to be games for both the DS and 3DS, to keep it fair for those who don't have the 3DS. ;D

More Pokemon games.