She wants you to grab you wii u game pad, not your **** (Just kidding hoots haha. I don't know any rule 34 about WiiFitTrai.... God... Lord.... What was I thinking).
...Most of it is poorly drawn.
When I saw the picture of Samus, Peach, and Wii Fit Trainer, I looked around. Not a single trio of them available, sadly.
As for Geno, I only hope for him if Nintendo buys him. Otherwise, please give me somebody else from Square-Enix. For instance, Black Mage.
Also, Waluigi is still a regular Mario character in the first place. There is no distinction among the Platformers, Sports, Parties, or Karts whatsoever beyond their gameplay differences. They all happen per Word of God. So Waluigi would just have the Mushroom Symbol if he were to get in. I'd prefer Bowser Jr. a bit first, though. Since he's more directly a villain instead of sometimes being one.