Super Mario 3D World: Bowser-A -- Motley Bossblob's Encore

Grab the Double Cherry to the right, then step into the gondola. Motley Bossblob appears, sporting different colors. When he lands, he creates shockwaves. Grab the Double Cherry after he splits up after ground pounding, the stomp him. Stomp him three times to win. Collect the coins and grab the Green Star. The pipe leads to the flag. You'll need to complete Bowser-B to continue.