The Mice Family are a group of mice from Putt-Putt Goes to the Moon. They are a mother, a father, a brother and a sister.
Putt-Putt runs into the mice family as he goes to the right to find a way back to Earth. He asks if they know a way back to Earth, but they reveal they do not as they just got here. The wife mouse suggests launching off a nearby rock ramp. After the mice leave, Putt-Putt attempts to launch off the ramp, but just lands back on the ground.
Later Putt-Putt runs into the mice family exploring the moon in a spaceship as he arrives at a fork between the way to where Rover is trying to get the steering wheel and the location where Alien Tag can be played. they are shown passing from the left and heading right before the mouse wife clarifies to her husband to go left, prompting the ship to go the other way.
Sometimes when Putt-Putt goes to the Moon City Observatory, the two children are eating the observatory because it's made of green cheese, but her mother tells them to stop.