Liquid Mike is an evil clone of Mikennemonic. He believes he is the superior "Mike" and wants to take over the streams for himself.
Everything about him is the opposite of our Mike. He also has a weird fascination for Radiation. Liquid Mike also has a habit of calling Mike "Solid Mike".
Mike and ended up fighting on a tank... though the fight ended up him tripping on Mikes foot and him falling inside the tank and got shot out.
Liquid Mike is still plotting to replace "Solid" Mike to this day.