Dry Bones are enemies who are skeletal, or dried out, Koopa Troopa. Dry Bones first appeared in Super Mario Bros. 3 where it, like its kindred, walked on four legs. In later games, Dry Bones and their alive counterparts would start to walk on two legs, starting with Super Mario World for the SNES.
Like most of the enemies in the Mario series, Dry Bones' appearances grew dramatically over time. Its current appearance was in Mario Super Sluggers. But once again, in Super Mario Galaxy, Dry Bones walked on all fours (as did the Koopas).
Dry Bones has appeared in many of the primary platforms and spinoffs, such as the Mario Party series. As aforementioned, Dry Bones first appeared in Super Mario Bros. 3 for the NES, and later appeared in Super Mario World. Dry Bones was not in Super Mario 64 or Super Mario Sunshine, but did appear in New Super Mario Bros., New Super Mario Bros. Wii, and Super Mario Galaxy. He also showed up in Mario Kart DS and Mario Kart Wii' as a playable character.
All Dry Bones can be capable of rebuilding their bodies after being hurt. This outstanding process takes place only a few seconds after being stomped on. The player can defeat Dry Bones for good, but it takes magic, bombs, an ice flower or Penguin suit, shell collision, or a possession of a star to do so. You can also break him and knock a body part off to a lower ledge or lava, but the remains will permanently stay.