WarioWare Gold. After so many years without a mainline game that one felt like the true comeback that the series needed. It took me a while to adjust to the new designs and voice actors (I really hope they have more dialogue in the next game) and the fact that the characters don't say something the moment you win (that bothered me so much), but now I am used to it. I think the main reason why I love it is because as someone who has always been a fan of the games, it was like a love letter because I was able to recognize all the microgames and see how they really changed them up and made them like new! I think it's my most played game as well, I have easily sunk over 600 hours into it. Every character got the spotlight and it was beautiful. Nintendo did wonderfully with the dubs in other languages too. Who knows though, this next one might top it!