- Blooper: Pay attention to the hammer Princess Tippi is holding in her first introductory cutscene. Now look at the hammer she holds in-game. Notice anything? In the cutscene, the head of the hammer she's holding is red, however, the hammer she uses in-game has a light-blue/cyan head.
- Bonus Material: The Ribbit King Plus! bonus disc, which allows you to watch the movie clips that you unlocked in the story mode.
- Colbert Bump: The game became more well known after it became one of the Game Grumps' favorites (they are very fond of golf games) and got featured three times in the show.
- Cross-Dressing Voices: Scooter, Picwick, Pappy, Pepe and Papoo are all voiced by women (in the English version, at least).
- Missing Episode: Ribbit King Plus! originally aired on TV Tokyo in the summer of 2003 (under the title Kero Kero King DX Plus) as a thirty-episode series of shorts to promote the game. Most of these were featured on the North American Plus! disc, however three shorts (one of them being the first part to "Fast Food Surprise") were left out.
- Name's the Same: In real life, "frolf" (without the capital F) is also the informal name for what is called "Frisbee golf", apparently.
- No Export for You: The original Kero Kero King. Then there's the Ribbit King Plus! disc, which wasn't released in the PAL region.
- Sequel First: This game is the sequel (of some sort) to the 2000 Japan-only PlayStation game Kero Kero King.
Trivia / Ribbit King