Really like the game! Really impressive the art style and the amount that can be going on with the mass amount of enemies with the targeting and everything.
Some feedback: The WebGL version clips the start wave button without full-screening. Too much health for the base, it makes it too forgiving. It seems like every enemy is worth the same value. Perhaps different values may be more balanced?
But again, really liked it. Can't wait to see what you do next with this.