Buzzy Beetles first appeared in the game Super Mario Bros. for the NES. In the game, they could not be killed unless you had a starman, which you could then ram into it. Even though that's the only way to kill it, you can still jump on its head to make it go into his shell, where you can then kick it like you would a Koopa Shell. The Buzzy Beetles have appeared in most of the Mario Platformers.
Its most recent appearance is in New Super Mario Bros., where it will appear as it does in Super Mario Bros., but it will also hang from a ceiling, then when you get near it, it will drop down and spin in your direction.