Doesn't seem to be loading for me. Just the PlayCanvas logo. Not seeing any errors in JS console. Using Chrome Version 41.0.2272.104 (64-bit).
EDIT: Tried another game from playcanvas.com and I get a banner saying 'This page requires a browser that supports WebGL.' However, it is enabled.
This is just an FYI for the developer, but is probably just a problem on my end.