Tries to save global warming? o.o well also your hit % is always 100% so i'd guess it's basing ur hits of the hits on the enemy not shots fired, you should probably divide hits on enemy with shots fired or so and the boss problem could be that ur bosses is in the same category as the normal enemies, thus your shots always kill, since from what i saw there was no damage formula in the shootorial but i might have missed that since i didnt look through it all.