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Nintendo DS - Hi Hi Puffy AmiYumi: The Genie And The Amp cheats

Health sushi:
If you are low on health in the first round, find snowmen around 
Mei Pie's Training Grounds. You can find some Sushi in them.
You can also find sushi in vending machines. There is a vending 
machine in Mei Pie's training grounds and in other places.