I like the humor in this game, and I didn't expect the graphics shift when heading to the lobby! Unfortunately I was bugged and couldn't fight the bosses after the lobby. I tried restarting from the pause menu like the game page says, but the same thing would happened every time. A dialogue box would pop up quickly and then I'd be frozen.
One piece of advice I'd give is you have the attack incoming text in the corner of the screen, but it took me quite a while to notice it. I'd try to put the indicator on the boss somehow, maybe a quick flash of light or something before the attack starts.
Great job!