Rainbow Route

General Information
Rainbow Route is located at the heart of the Mirror World. It connects to each of the levels that Kirby must enter to find the Mirror Shards. It begins as a simple grassland, but the scenery changes depending on where it's located, such as having a mountainous terrain when approaching Mustard Mountain, and pine forests surrounding Carrot Castle. Being the first level, the earlier parts of Rainbow Route do not have many challenges and is overall easy to venture through. As Kirby's quest progresses further, he moves to harder and more diverse parts of Rainbow Route, which have more complex puzzles and a wider array of enemies and impediments. The only place Rainbow Route does not come in direct contact with is the final level, Candy Constellation.

Rainbow Route is also the place where Kirby first comes face-to-face with his Mirror World counterpart, Shadow Kirby.