Long ago I found a nice little 2d shooter that looked extraordinarily hard.... It featured a white spaceship in the 80 classic grafic.... I cannot remember much about it other than that the final boss of the first stage was a green worm with a blue sphere witch acted both as his head and his weak point....

The second final boss featured a similar structure from the first... But instead of being a worm it looked like a whole structure with the ball weak point included in a sort of construction, bouncing around a small room with a little hole where you would shoot through....

The last thing I remember is the countdown when you would put a coin to continue playing after a game over.... It was built with small spheres that started eradiating from the center forming in succession the countdown...

If you could help me find it it would be much appreciated.