This is 3DS ROM #1683
Japanese name: Mario vs. Donki-Kongu: Minna de Minirando
Translated jap name: Mario vs. Donkey Kong: Every body in Mini-Land
English name: Mario vs. Donkey Kong: Tipping Stars
Released for the 3DS (and the Wii-U) in Japan on 2015-03-19. Japan was the only country to have physical copies of the game. In all other regions, it was obtainable from the e-shop only.
This is the japanese version of the 3DS game, and it is only in japanese language..
It is a "cross-buy" game, meaning that if you purchased it for the 3DS, nintendo would let you download the Wii-U version for free.. Likewise, if you purchased the Wii-U version, nintendo would let you download the 3DS version for free..
It is a "cross-play" game, meaning that you can play it on one device (Wii-U or 3DS) and some how it will synchronize your saved data between the two devices so that you can switch back and forth if you want to..
The Wii-U version is not included in this download, and have no idea where you would find that image at.. (I think the Wii-U was recently finally hacked in mid-2015, but only if you have an older firmware version)..
This is a single .3ds file inside of a .7z archive file..
You need a gateway card or maybe some type of CFW to get this to work.. And you need a 3DS with lower version sysnand firmware..
I have confirmed it to work at least with this set up: new-3DS sysnand: 9.2.0 emunand: 9.2.0 gateway launcher software version 3.4.1