Hi there, thanks for the like and feedback!
Acutally, that "dash to kill enemy" suggestion is pretty valuable imo, currently a hiccup I'd like to improve of this game is that once your energy level drops below 10% you can do basically nothing but wait for death. (since fire a bullet cost 10% of your energy) And that dash thingy is just perfect for this situation!
Also, the reason I didn't make web version of this is due to my own experience when playing games with webgl was quite unpleasant (laggy). But I just found out that was due to some bad setting of the browser, so I guess I'll give it a try!