BOSS 1: KING BOM-OMB.
Simple. When King Bom-omb Throw's A Bomb, Spin Attack It In The Direction Of King Bom-Omb. Repeat 3 Time's To Win.
BOSS 2: CHEIF CHILLY.
Knock Him In The Icey Water 3 Time's To Defeat. Also Don't Get Knocked In The Icey Water Yourself, 3 Time's And You're Dead!
BOSS 3: BOWSER IN THE DARK WORLD.
When Bowser Jump's, Run Past Him. As He Land's, Dive Into Swing Him Around, And With A Click Of Space Bar, Sent Him Into A Bomb.
BOSS 4: KAMEK IN THE GARDEN.
First, He'll Toy With You. Don't Go To Attack Him, You Can't. He'll Summon Eneime's And Bomb's. Soon, He'll Get On His Broom, Summon Pipe's That Make Eneime's Spawn Out Of Them. Then, You Battle: Mini Boss 1: King Gomba. All You Can Do Is Butt-Stomp. Everytime He Grow's, So It's Harder To Jump On Him.
BOSS 5: BOWSER AND THE FIRE SEA.
Same As First Bowser But With More Attack's, So No Guide...
BOSS 6: BIG BULLY.
Guess? BOSS 7: KAMEK IN THE FORTRESS. You Do A Mini Level, With Him Annoying You. Then, She Summon's A Red Big Bully.
BOSS 8: ROBO BOWSER. He Fly's In That Clown Thing. He Sent's Ramdom Fireball's And Finally Dive's. When He Dive's, Jump On Him.
FINAL BOSS: BOWSER.Same... But When You Have Him It Enter's Gravity Mode. When The Targeter Point's At A Bomb, Let Go.
Hope This Guide Help's! Please, No Bad Repley's.