Nice game, but I think there's a bug with the ability to continue, namely that the enemy's that were around when you were killed will reappear when the game restarts. This admitedly wasn't much of a problem till the final bosses started rolling. I was killed by the pair of bosses after the first one, chose to continue and there they were still, when two of the same bosses suddenly appeared. Quite rightly, they managed to kill me. So, continue again and another pair appear along with the four already there. At that point, I think I died to quickly for anymore to turn up, but that's to be expected when all their shots also reappeared after using the continue.