there's no need to get ultra sun or ultra moon if you already have sun or moon, honestly—the new additions weren't nearly enough to justify their existence, imo

the ace attorney series is very anime, but given the subject matter, you might actually find some appeal in it

you have five very solid zelda games to choose from: MM3D, OoT3D, ALBW, Phantom Hourglass, and Spirit Tracks (ordered from best to worst, in my opinion—i'd play OoT before MM if you haven't already, though)

between new leaf and wild world, you have some animal crossing games to choose from if you're interested—if you haven't played one before, the appeal of these games will not be immediately apparent, as it's basically a life simulator and neighborhood management simulator with cutesy animals, which makes it sound like utter shit, but it's actually a pretty uniquely comfortable and soothing experience that no other game i know of offers

mario kart DS or 7, of course—7 is probably better, but DS has a much better roster because it lets you play as ROB the robot

the original new super mario bros for DS (aka the last 2D mario game with a soul) is solid

kirby super star ultra is the only kirby game you'll ever need to play if you ever wanted to try one

don't bother getting mario maker because you can't upload levels in the DS version, it fucking sucks

some people will probably recommend fire emblem or bravely default or some weeby-type RPG shit—don't bother with any of that, but you can maybe try chrono trigger if you want to try a classic

GTA chinatown wars was a thing that happened, never played it myself but i think it's supposed to be good

smash 4 if you want to scratch that itch before ultimate comes out, portable smash is pretty sweet

metroid: samus returns is not an ideal starting point if you've never played a metroid game before, but it wouldn't be a bad choice if you have (it's a remake of metroid 2 for the original game boy, for the record)

kid icarus uprising and luigi's mansion: dark moon are games i don't think you'd be interested in, but they're worth mentioning

If you like Metroidvanias, aside from Samus Returns, Mega Man ZX Advent was pretty great

Mario and Luigi Bowsers Inside Story was a great RPG

Kid Icarus Uprising is my second favourite game of all time, but that might be an acquired taste since many find the control scheme awkward (aiming is done with the touch screen)

What Verbatim said
 Custom Robo Arena
Pokemon Heart Gold
Monster Hunter 3 or 4 Ultimate or Generations
Yu-Gi-Oh Word Championship 2011 was from back when that game was not complete garbage if that's your thing.

Just stock up on VNs you fucking weeb.