It depends on which rainbow you want to unlock. Once you talk to the harvest Sprite, they give you the recipe. Find all the ingredients in the recipe and bring it to that sprite. Then they sing a song and you can cross the rainbow.
you cant so dont hehe
In Caramel Falls
By completing the first rainbow.
you have to complete the third rainbow(blue) and then cross the rainbow bridge and your there!
No it needs to be good.
Complete the yellow rainbow and find it in the unlocked area
cook ratatoie on a red head
Once you get Alan's rainbow, go on it. You will be at the top of the mountain. Walk to the left and you will find his tree.
You Don't. Go do Ben's rainbow
Go togamefaqs.com to see the answer they have lots of answers for that one.
you have to complete the first rainbow (green) and then talk to the captain in on the hook
you need to complete the Green rainbow so people can move into town.