I don't think so. I found them as well and I think it's a pretty good idea to give players the change to get extra lifes easily. That gives the "hmm, ok, I'll try again, it won't end the game"-effect.
Why am I trying to make every level a military installation? OK, the 3rd level is done (vertical, slightly different from the others) and I personally love it! I'll try to make the 4th level a city, I promise. Sorry for the long break, I had no time to resume the work.
Due to a flood of ideas in my head, I've changed some graphics (for the 4th level - a very, very special one, and the world map) and plan to change a bit more, thus making this a mini-mod. Currently working on the graphics and then I'll make the level.