У вашего броузера проблема в совместимости с HTML5
I've played the full game on Xenia as well and, gotta say, I'm pretty good at this game considering its reputation and the fact that I've never played it before. I'm still amazed by how fast Xenia is, the game runs even better when not recording. Oh, and yay for 2-3 second loading times!
Build used: Xenia Git 08/23/2015
Xenia on GitHub: https://github.com/benvanik/xenia
PC Specs:
Intel Core i5-4690K @ 3.5 GHz
8 GB RAM
Gigabyte GeForce GTX 760 (2 GB)