Moon is a character from the Best Wars II series. He is characterized as an observer of the war between the Maximals and the Predacons in Earth’s distant future.
Much like G1 Mirage, Moon has the ability is to become invisible.
Moon’s figure was available only in Asia in 1998. His IDW Beast Wars profile is at the time of my writing this his only depiction in Western media.
Moon transforms into a rabbit. His robot-mode chest has a “View-Master” gimmick that shows various art from Beast Wars II when you look through it.