Wonderputt, custom engine or reused one
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like many others i guess, i came across the wonderful game of "wonderputt" ([http://www.dampgnat.com/wonderputt][1])

I was wondering if anyone knows how it was produced.
Did they use an engine like box2d or rolled their own?
Did they use the Stage3D Feature or pre-render the grafix?

Any Infos greatly appreciated, thanks!


  [1]: http://www.dampgnat.com/wonderputt