Do you know about this 2

-In Iggy Dodgers, Larry Koopa was originally supposed to be the main villain instead of Ludwig. But it changed, because of the maturity differences of the two koopalings characters.

-Icky Monkey in his first design must normally have five fingers, and his hair was more shorter than his definitive design.

- Hilda Sunnysky is mainly based on the Toon Dark Magician Girl from Yu-gi-oh series (Colors of the clothes, blond hair...) and also the character of Kaora Sû from Love Hina series (for her playfulness). 

- In the original idea of the Road of the magic totem, The totem falling on the water, and the princess Peach is cured in drinking water with the magic totem energy on it.