i wanna say he was in....the Game cube version?
Wii never had tennis. (if it did i never got it). and then we all can agree wii u tennis sucked.
In other Nintendo-y News. I'm really washing my hands of Fire emblem Heroes (for a long time anyway). i really hate Gatcha/Freemium games, and i bit on this because it's fun and the idea was good. but as always you get to the point where you have to sink in a lot of money to really get the chance at good Units, and the last two days all my carefully saved Orbs got blown on the same character. (literally 3 and 4 star version of the same crappy character). any thought of me really spending coin on this went on the window because i was already raging at not getting a good character, and if i spent more than what i already did i would have blown my lid).
Yeah, he was in the game cube version. Which wasn't awful, but I didn't like that it basically became a contest of "stave off the opponent until you get a power shot, then use it just right to get the point. then repeat"
He also wasn't in the 3DS game (which was even worse for its reliance on the power shot/smash mechanic to score).
Wii only had a reskin of the Gamecube game with waggle/motion controls, making it an unplayable hybrid of actual Mario Tennis and the WiiSports pack-in Tennis where you do nothing but swing your arm to hit the ball. It was awful.
I never got into Heroes, though that's mostly because I've never enjoyed any mobile games that use that freemium gatcha model. I'm trying to finish Shadows of Valentia on the 3DS but blllllluuurrrrgh the last portion of chapter 4 is a gigantic slog.
Also touching on your earlier comment about Stardew Valley, I have it on the PC and have only played it a bit, but it just didn't grab me right away. What I have enjoyed though in that sort of vein is Rune Factory 4 on the 3DS (it's in the eShop). It has some of those Stardew/Harvest Moon style farming sim aspects, but is a bit lighter on those (mostly focused on managing a few small plots of farmland to raise crops along with a simple system for taking veggies and other materials you can gather around the world and use them in cooking and crafting systems as well as money-making opportunities) but marries that with RPG growth/progression and Legend of Zelda style exploration and dungeon crawling and has a charming anime-esque veneer over it. It's a full-price game, but it's more concerned with the action and story than it is the farming, so you're free to do as much or as little of that stuff as interests you.