@Thrasher: The zombies can magically survive the flamethrower because video games aren't subject to real world logic. I agree the game could use some improvement but not in that sense.
Great job on the game though, I've never seen someone actually include some sort of progression with the whole 3-objective mechanic.
Personally, I found the attention to detail in this game to just be absolutely marvelous. I mean, on level 14, where you fight the Turtle Guardian for his in-shell television, I actually felt as if those flaming rabbits were really flying at me. Astounding!