A pain for me to control with bad hand-eye but a really neat game. You did a great job with it. Cool stuff.
give it a try here -> lol.pm/zepton.html (beta version)
to enable the mouse, you have to press "p" or enter key to access the "pause menu" and select "mouse / button" option :)
also, I added a new weapon, try to press z and x at same time :)