3-D WorldRunner/Enemies

Jumpers
Not enemies per se, Jumpers appear throughout several of the later worlds, either to help you or to hinder you depending upon where they are placed and how you make use of them.

Serpent Beasts
Every serpent beast attacks in roughly the same manner, moving side to side, and front to back. They only differ in speed and the amount of damage they can absorb before going down. They are only a danger to you when they advance all the way to the front of the screen. Any portion of their body spells danger for you. Only the head needs to be destroyed in order to defeat a serpent beast, but you can destroy each segment individually. Destroying the segments is a strategic method of getting better access to the head. You must defeat the beasts within the allotted time limit. If you must defeat more than one beast in order to advance, the time will refill each time for every beast destroyed.