Prehistoric Ages - Day 1

Prehistoric Ages - Level 1 is the first level of Prehistoric Ages.

Difficulty

 * The Primitive Conehead Zombie rarely uses its skill, and will be defeated in two or three hits, so it won't be a big problem.
 * The new Slingshot Zombie, has low health, but it's a far-ranged attacker, so be careful or you may lose your health!