Game ends when invaders touch ground?

[pahp]

When the invaders make it to below the ground level, the game is over (the game froze on this screen):

Is that how the original Space Invaders works? I thought it would just come over and hit me and take away a life.

Maybe that's a WONTFIX bug, but I thought I would point it out.

[pahp]

To be more accurate, I would think that the bottom invader would come and impact me, costing a life, but killing the invader, and that the invaders would then keep descending... now that I'm explaining it I wonder if implementing this isn't more work than it's worth.

[pahp]

Another way to handle this would be an invader touching the ground costs you a life but kills the invader. That way, you'd get a few more passes of the alien fleet to earn more points if you had lives left.

[pahp]

Now, it seems that that the invaders physically colliding with the ship do not kill it, even though the code seems to be written to catch this case. Players don't die until the invader hits the edge of the screen in the bottom row. I'm not sure exactly what we want here, to be honest.