I just had that awful game... and I noticed that on the earlier levels you may wait for like 5 letters before the fireball comes out, but on the later levels you get only 4. And since I died so many times before lvl 15 I decided to complete the levels as fast as I can without waiting for letters. So when I got to Hell I had only 6 lives. But I was able to kill the enemies before the fireball come out and I died only 3 times - twice on the hardest 2 levels and 1 because of stupidity. On the levels after that I didn't have problems with the fireball either. So I think the more you wait on the levels the faster the fireball will come on the next levels. I've died so many times in Hell because the fireball hit me after I kill the fruits that I started to wonder if it would be better to end the first levels as fast as possible and this way benefit with time on each hard hell level. What do you think?