Funny game, i love it. Challenging but not overwhelming. You maybe can make the wave be "wavy shape" and maybe animate it, but i can understand time constraints. The song and fx are also good, you can maybe raise the background song volume a bit.
BUG: GUI are HUGE on my screen, i don't know if it is a problem with my browser (using Chrome) or something else.
Tell me i you change or add anything new so i can play it again ")