Lysis

Alien parasitic lifeform that feeds on energy sources like electricity and organisms

Shameful origin as fake Sonic boss - copypaste below

[Theme Song]

Lysis the Parasite
Lysis (Greek λύσις, lysis from lyein = to separate) refers to the breaking down of a cell, often by viral, enzymic or osmotic mechanisms that compromise its integrity. [source: Wikipedia]

Strange plants spread all over the planet, draining nearby recources, causing the original vegetation to gradually die off.

These plants are scions of one single being, Lysis. By his nature as a parasite, he longs for anything that would be beneficial for his existance, be it the knowledge of a certain evil scientist or the great power of the Chaos Emeralds.