Underdog
Crossovers
Rarity and Riff Raff by Florio Lazuli
This is a crossover of My Little Pony: Friendship Is Magic and Underdog, where it's about the relationship between Rarity and Riff Raff. But will her and Riff Raff's relationship be together?
Crossover - Underdog & My Little Pony - Rated: M - English - Hurt/Comfort/Romance - Chapters: 3 - Words: 1,812 - Updated: 3h - Published: 4h - Rarity, OC
Rocky and Bullwinkle in: “Underdog Returns” or “Literal Atomic Dog” by Ek01
In this crossover with Underdog, Rocky and Bullwinkle team up with said superhero to take down the grandchild of one of his old villains, who in turn teamed up with Boris and Natasha.
Crossover - Rocky and Bullwinkle & Underdog - Rated: K+ - English - Sci-Fi/Parody - Chapters: 7 - Words: 2,937 - Favs: 1 - Updated: 2/18/2022 - Published: 2/10/2022 - Complete
It's a Dog's Life by Evil Little Dog reviews
Talking dogs should probably be the least of their worries, but, there you go.
Crossover - Underdog & Avengers - Rated: K+ - English - Humor - Chapters: 1 - Words: 502 - Reviews: 7 - Favs: 12 - Follows: 5 - Published: 7/31/2013 - Iron Man/Tony S., Hulk/Bruce B., Nick F. - Complete