Hi Hi Puffy AmiYumi: The Genie & the Amp (Nintendo DS)
CheatingDome.com
Health Sushi
In the first round, find snowmen around Mei Pie's Training Grounds. In them are some sushi that can boost your health if it is low. You can also find sushi in vending machines. There is one vending machine in Mei Pie's training grounds and in other places.