I pushed a hotfix now that should improve mouse capture, I hope. I don't have this issue on my machine so it's very hard to test for. Let me know if it works better for you now. :)
Webgl is a pain in general tbf, i tried it again but it took ages to load (i was downloading the other version which downloaded faster than the web version loaded lol), the non web version is good, i liked the art and the disintegrator was very nice good job.
