I think there has been a misunderstanding, the bosses are the enmies on the screen which get progresivvely harder for now, but we are also planning on making a real boss whenever you hit a certain amount of points.
Ahh, ok so that was the bosses life, thanks for the information! I thought It was the amount of points you needed for the boss to appear and that's why I was a bit confused. Well, good job on the game afterall!