Dry Bowser is a bonewyrm version of Bowser, debuting in New Super Mario Bros. Dry Bowser was accidentally born in New Super Mario Bros.‘s first castle, when a short fight with Bowser ended with Bowser being dropped into a pit filled with lava.
Unlike previous occasions, the lava reduced the once-mighty king to a skeleton, leaving his son, Bowser Jr., temporarily in command of the Koopa Troop. He is then fought in the first castle in World 8. He makes an appearance as a unlockable driver in Mario Kart Wii, classified as a Large-sized character. Dry Bowser has an extremely horrifying howl combined with the rattling of bones from his entire body. This can specially be heard in Mario & Sonic at the Olympic Winter Games when the player faces him in Ice Hockey.