MagnePa

MagnaPa are enemies from Mega Man Zero 4. They only appear in the Magnetic Zone, Mino Magnus's stage. They are hopping robots that guard the inside building leading up to the sub-boss fight with ClabangerNS.

MagnePaS
MagnePaS is the blue MagnePa. It simply jumps up and fires two spheres from its side blasters in an attempt to hit you. 

MagnePaN
MagnePaN is the red MagnePa. It basically acts the same way as MagnepaS by jumping up and firing two spheres from its side blasters as an attempt to hit you.