Fire Breath, Airship Fleet, Many different weapons, etc.
Mr. Bowser, King Bowser, King Koopa, The Monster, Monsieur Turtle Bits, etc.
6 feet 6 inches
240kg 500kg (in Bowser's Inside Story after the Boos force-fed him high-calorie foods)
Bowser Jr., Dry Bowser, The Koopa Troop, Mario (sometimes), Luigi (sometimes), Peach, etc.
Mario (usually), Luigi (usually), Mushroom Kingdom Residents (in main Mario games), etc.
Taking over the Mushroom Kingdom, Power, Evil Stuff, Racing, Treasure, Kidnapping Peach, etc.
His plans being foiled, Losing battles races, sports, and tournaments alike, etc.
Bowser is the main antagonist of most Mario games. He likes kidnapping Peach forcing Mario to go on epic adventures to save her. Bowser has tried to take over the Mushroom Kingdom, Delfino Island, Sunshine Isle, Dinosaur Island, Pi'illo Island, The Beanbean Kingdom, Vibe Island, and even the world, or even to an extent the universe. He has a powerful army filled with many tough burly minions known as the Koopa Troop. Bowser sometimes collides armies with other villains such as Chef Pee Pee, Antasma, etc. He is usually the main antagonist of most games with a few exceptions such as the spinoffs, Mario Karts, Parties, Sports, etc. In the RPGs, he is usually an anti-hero, a minor villain, or even a hero with an exception of Paper Mario, Paper Mario: Sticker Star, Mario & Luigi: Dream Team (only because it was a twist), Mario & Luigi: Paper Jam, and Paper Mario: Color Splash (which was actually the Black Paint possessing him) where he is the main antagonist. Bowser has a awesome son named Bowser Jr., he also has seven Koopalings in his army which were thought to be his children but Shigeru Miyamoto confirmed in an interview in November 2012 that the Koopalings are not Bowser's Children and that Bowser Jr. is Bowser's only child.