- "This is one of the most important things for us humans, so let's be kind to others. If your "Kindness" goes up, something good is bound to happen."
- — The Mother 3 beta menu's text about Kindness
The Kindness stat is an unused game mechanic(stat, like Force or PP) in Mother 3. It is unknown what this stat was going to be used for. In The Unofficial Mother 3 Fan Translation, a beta menu was undummied and talks about several topics, including Kindness. There are times in the game, however, where Lucas or Duster does something that could be considered "kind", and a tune plays while a message states "You felt something warm inside of you." Whether this is related to the Kindness stat is unknown. However, if it is, it is most likely related to making the Kindness stat go up.