At the shop buy the 'Natural Power' item and then when you need to refill the yellow bar below your heart look for a safe place to stand still that has no enemies nearby that can harm you. If you then allow Peach then to remain idle by not using the touch screen or controls the umbrella will cover Peach's head and the bar will refill.
These skeletal versions of Koopa Troopas will keep re-building themselves no matter how many times you jump off their head. To get rid of them permanently you have to throw something at it or stand next to it and use Joy or Rage.
Hammer Bros, Bowser's VillaAdded 11 Oct 2007, ID #5127
When you are attacking the hammer bros, use fire. It kills them a lot faster and you take hardly any damage. Absorb some if you don't have enough gauge. For the general, wait till he's above or next to you before using fire.
On hoo's wood there are two pipes that are in the ground to access them go down the pipe at the end of the level and cry on a blue water wheel with a face on it.it will then say a loud noise came from somewhere then go back through the other pipe and get those toads.