The check at the start where it asks you to point at the center is pretty useless. I just get the cursor on the center and press A. When you're actually playing and things feel off, just enter your item menu and press down to recalibrate (this can also be done while aiming with anything).
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Yoblazer: http://8board.webs.com/ariel.jpg
Watch and you'll see... someday I'll be... part of your world!