This is a fun Japanese puzzle game. The object of the game is to locate the key in each level, and use it to open the door. Simple, huh? There are 20 levels. Have fun, and good luck! 
Play HERE.
Please use spoilers to give hints:
[spoiler=Title Here]Enter text here...[/spoiler]

Play HERE.
Please use spoilers to give hints:
[spoiler=Title Here]Enter text here...[/spoiler]
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