Alrighty. If you can use it for a game like SMW without encountering any problems...my bad. I'm talking about the difference between getting "up" and "up-right" when using the thing. From my experience it wouldn't be great for precise 2D platforming either. Again, if I'm just terrible with it then sorry. But it's always seemed pretty useless to me.
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http://soundcloud.com/thundersheep/lunatic-asylum
http://soundcloud.com/thundersheep/summer-rain