У вашего броузера проблема в совместимости с HTML5
Testing new implemented damage, ring scattering and regathering, temporal after-hit invincibility (and its classic sprite flickering) and a little run to admire UE4's incredible foliage performance.
/*NOTE: I know this looks too bright. I've recorded this in middle of a process of testing and fooling around with things and the bloom was adjusted for other scenario and light configuration. The video says it all, "DAMAGE TEST", I was testing the newly implemented feature, not the postprocessing. Please stop commenting about how bright this looks. I cannot seriously take comments like this on a game that isn't even released.*/