Subarashiki Kono Sekai - It's a Wonderful World - Platform: Nintendo DS

Completion bonus:
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Successfully complete the game, and save when prompted. You can start a new 
session with your cleared saved game file with most of your previously obtained 
items and skills.

Easy PP points:
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When you save and turn off the Nintendo DS, you will gain PP points for the pins 
you have on. You can use this to your advantage by changing the system date. 
Save your game, turn off the Nintendo DS, turn it back on, go to the date 
setting, then set it forward by seven days. The Nintendo DS will turn itself off 
after you are done. Turn it back on, and load your game. You should gain PP 
points for seven days. Repeat this as many times as desired. Once done, save the 
game, and change the date back to the correct value.