First you jump up, then you press the "L" button.
There is a panel on the floor you can ground pound.
Inside Boo's Mansion. There are several wooden crates in various rooms. Once you have the ground pound ability, ground pound on them. Some of them have apples.
You have to use Thudley and ground pound bellow them
The ground pound goes back to Super Mario 64, which was the first game to allow Mario to do a ground pound. It's been a signature move of Mario since then.
paper airplane mode, paper flat mode, paper tube mode, paper boat mode, ground pound(called spin jump), super hammer, spring jump, ultra hammer
He's only in thousand year door ,but his moves are: Ground-pound,Gulp,Mini-egg, and Stampede.
Ground pound on them.
In games that allow it such as Stacked Deck you must press A then Z while in the air to do a ground pound.
Don't kill Petey Piranha but anyways... ground pound on Petey Piranha, of course.
if you want to ground pound you have to jump and the R button in air
if you are mini Mario you have to ground pound
Press B to jump, then R to do the ground pound. Any form of jumping, whether its normal, double or triple, you can still do a ground pound. Hope this helps!