Thanks for the tip Andy! Could you possibly also just remove the sensor bar from on top of the TV as an alternative? That way you don't have to worry about covering up the wiimote.

Andy's problem was with external IR (the sun), so no, not in that case. I wonder if this was the problem with the demo unit I played at E3; there are often stray IR sources. I have to wonder just how the game is using the IR signal since it doesn't seem to use it directly.

I've heard that you can completely unplug the IR sensor from the back of the Wii, and large portions of the game are still 100% playable

Hopefully No More Heroes 3 and Red Steel 3 incoporate this same system into their iteration on the Wii U.

I would guess that the IR sensor is used to calibrate MotionPlus as you play, so you don't have to do it manually all the time as in Resort and some other early MP games. If you're moving around and aiming at the sun, the orientation would recalibrate in strange ways and confuse the game.

Now Miyamoto has been vindicated for his E3 2010 performance.

Any chance Nintendo could use this in the next Wii Sports game?

It's a shame they didn't add a magnetometer to MotionPlus like Sony did with Move. At least the Wii U tablet will have it.

And the Move is still not as good as the base WiiMote in Practice.

After many attempts across half a dozen Move games to get one to work right, I quite agree.  Because of how the Move works (a really bad camera trying to track a ball of light), games tend to lose calibration if the Move wand is outside the camera's view for more than a second.  And I've found it very easy to accidentally shift that device outside of that camera's pitiful range, which leads to constant recalibration.  And that's when the Move actually works.  Child of Eden was completely unplayable with that thing because the game wouldn't track the wand right, leading to shuttering reticules.

I found the note about the IR sensor getting interference from the sun interesting, as I've thought for a long time that I always had the most motion control problems with my Wii remote during the day (despite my blinds being shut, my TV sits right in front of my window).  On today's episode of Invisible Walls, Shane Satterfield also commented that he had a lot of trouble getting the controls in Skyward Sword to work right during the day, but 2 AM play sessions worked great.

I had a big trouble with the pointer spazzing all over the screen last Christmas. As soon as I turned of the flashing Christmas lights it was fine.

Thanks for the tips.

Blinds tend to have those little holes for the drawstrings... those let in points of light that look a lot like the Sensor Bar LEDs to the Wii Remote.

Well, that's unfortunate but due to how the outlets were (stupidly) set up in my room and how my furniture has to be arranged, the TV can't be moved at this point.  I'll just have to keep in mind the next time I move not to plan out my room so the TV sits in front of a window.

Yeah my TV is next to blinds as well but the light from the string holes shines directly in front of the TV.  This made certain Wii games like Metroid Prime 3 impossible to play at certain hours of the day depending on the time of year.  At least it gets darker early this time of year around 4-5 so the sun shouldn't be too much of a problem unlike the summer were I'd have to wait until 7-8 just to play certain games sometimes.

Of course this would explain why there's a big gap with how some reviewers felt about the controls.  Depending on when and where they played the game, the quality of controls can literally vary by a great deal.  Actually this really would explain why some of the reviewers opinions on the controls are like night and day.  Those who played at night love them and those who played during the day hate them.

Thanks for the tip! Fortunately my living room doesn't get a lot of sunlight, but if I get any wonkiness while playing, I'll know what to try.

For those with blinds near the TV (like me), you might want to look into cellular shades.  You might get a little light around the edges, but none from the bulk of the shades.  I don't think they're very expensive.

nice tip, thanks andy, anyway I'm still annoyed by how often I have to recenter my pointer, especially using some items (i.e. the leafblower-thingy)

Isn't there an option to toggle the use of IR for automatically recalibrating the Wiimote? I'm sure I have see that option before in another game.

Sounds like it's just giving you the worst of both worlds, shitty sensitivity by aiming with motion plus and IR trouble by incorporating the pointer somehow.

Also another hint for players: Enemies block towards where you're holding your sword but your swipes are triggered only by the direction of your controller swipe, it doesn't matter where you're holding the sword. So hold it to your right and swipe it even further right to catch enemies off guard (and hurt your arm...).