Working on a non-WebGL version for the Scirra arcade. Below are a couple of screen shots from IE and Chrome. (you'll also notice a FPS counter I am using for debugging)
<img src="http://www.scobot.com/blog/wp-content/uploads/2013/01/Hupfen_promo_WebArcade_IE_640.jpg" border="0" />
(web browser = IE)
<img src="http://www.scobot.com/blog/wp-content/uploads/2013/01/Hupfen_promo_WebArcade_Chrome_640.jpg" border="0" />
(web browser = Chrome. Note the Chrome version does have a WebGL effect, Gamma with no settings in order to creat the draw effect, but it is using the same art assets as non-webgl browsers, if that makes sense. lol)
I actually kind of like how it looks in IE - shocking!
<img src="smileys/smiley3.gif" border="0" align="middle" />