Rainbow Pudding is an enemy that can be fought in Witch Spring, after clearing the main game. It drops a Rainbow Pudding item (recovers 60 HP and MP).
Pudding subordinates united after Pudding King suffered by Pieberry. Got better taste. Improper to be a pet.
As they appear in the post-game, they are relatively weak compared to Pieberry's strength. They will be easy to farm as recovery items.