Dry Bowser is a Dry Bones version of Bowser. It first appeared in New Super Mario Bros.. It was a boss in after Bowser fell into lava earlier in the game. It has also appeared in Mario Kart Wii as a playable racer.
New Super Mario Bros.
Mario fighting Dry Bowser in New Super Mario Bros.
In New Super Mario Bros., to defeat the skeletal monster, Mario must dodge Bowser's attacks, which include breathing small flames and throwing his own bones, and wait for Bowser to make a high jump. Mario must then run under Bowser and hit the Skull Switch, destroying the bridge and throwing Bowser into a very deep pit. This battle is very similar to the battles against Bowser in worlds 5-8 of Super Mario Bros.; however, in that game he threw hammers instead of bones.
At the final battle of the game, the remains of Dry Bowser were thrown in a cauldron (the contents of which were unknown) which turns Dry Bowser back into his original form, except much larger, as if he had used a Mega Mushroom.
Mario Kart Wii
Dry Bowser makes his first playable appearance in Mario Kart Wii. He is a Large-sized driver. He has a more terrifying roar than Bowser in this game, mixed in with several bone rattling sounds, which make up his sound effects throughout the game. He can be unlocked by beating all new cups on 150cc with at least 1 star ranking or play 4,350 races.
Mario & Sonic at the Olympic Winter Games
Dry Bowser and Dry Bones in ice hockey (Mario & Sonic at the Olympic Winter Games)
Dry Bowser and Dry Bones are bosses in ice hockey (the last boss).