Gaming New Super Mario Bros Wii question *World 8 spoilers*

[Deleted User]

Okay, so I'm having trouble with Bowser JR in the Airship level of World 8, just after World 8-6. How do I beat him? He drops cannons and stuff which explode and can send you into the air, but I still have no idea what to do :\

 

[Tashi]

pound the ground so the ball flys up and hits him.

 

[razorback78]

requires timing of course.