Runs well here. Maybe some frame skipping but I can't really tell. Some effects like explosions, and the fire effect when the ships moves, have a translucent box around them. Don't know if this intended or not. Gave me the same error as HotGod the first time I closed it, but never again the other two times.
Must report that my attention span increased so much playing this as an EXE. Happy that a HTML5 game kept my attention for much more than a few seconds.
Windows 7 64-bit Sp1
Intel Core i3 CPU M370 — 2.40GHz
4GB RAM
Intel HD Graphics Core i3
Latest drivers
This is promising.