- When Luigi is near victory when Mario is playing; no matter how much Luigi is looked down on by the rest of the world, his brother still looks up to him. D'aww!:You're my hero, Bro!
- Pretty much all of the interactions between Bowser and Bowser Jr. are adorable.Bowser: Way to show these folks who's boss, Son!Bowser: Urgh! I hate to give up my money, Son, but it's worth the sacrifice to see you succeed!Bowser Jr.: Wow, Dad! You've got the coolest shop in the world! It's worth any price to bask in the glory of the great Bowser!Bowser Jr.: Urk! That's some shop you've got here, Dad! I'm gonna work extra hard to live up to your awesomeness!
Heartwarming / Itadaki Street