Thanks for playing (and for reading the whole devlog)!
Unfortunately mouse won't work on browsers because the game requires a great deal of mouse movement and I reset the mouse to the center of the screen when they hit the edge, seamlessly so the player doesn't notice. I haven't found a way to do this in browser, I can't take control of the mouse position like that.
Second person dying after wave 3.. I wonder if the speed and flap power changes made it less intuitive..