1. Luigi seems to be in love with Daisy, but when he figured out that Princess Éclair was taken, he was jealous.
2. There will be a “Petey Piranha in space”, not exactly alike, but similar, in Super Mario Galaxy. (see Piranha Plant Dinosaur)
3. Waluigi is the only Bro. who hasn’t starred in his own game.
4. The Daisy trophy from Super Smash Bros. Melee has a third eye on the back of her head.
5. Wario and Toadette are “secret friends”.
6. Daisy and Toadette are “shopping buddies”.
7. There’s still no direct proof that Wario and Waluigi are brothers.
8. Super Mario Bros. 2 was just a dream.
9. Wart was mentioned in Mario Superstar Baseball, but never seen.
10. In Super Paper Mario, Pixls take the place of Mario’s various species of partners.