Yes, I was looking into using Javascript.
Example Javascript Game: https://worldsbiggestpacman.com/
I had previously used ActionScript 2.0 with Macromedia Flash Editor Tool. However, I verified that the output Browser applications do NOT at all appear as TUGON, or a Super Family Computer game yet.
Over 5 years ago, I also verified HTML5; it appeared to be quite a huge variation to Flash.