I was unable to get some of the basic sounds to work IE Bell, Boom.
Performance was very slow Using my Firefox browser (I do not use chrome )
I am truly waiting for the native compiler to come out . I am not much for running games in a web browser. Also waiting for sound support .
You are off to a great start . Since a lot of programs have that retro look anyway , I cant think of a better way to write old time games them with amos2