In this gigantic from of Mario or Luigi. As said above, they'll crush anything in their way. Such as, blocks, pipes, enemies, etc.. Coins will also fall down from the sky when ground-pounding. When they glow green, that means they'll be small again. There's also a green bar that can be seen in New Super Mario Bros.. Deepening on how long the bar is, is how many 1-UPS the player will get.