Glitchica

-Yes, you've noticed the Black and Magenta Patterns. "Missing Texture", meaning his Eye, Logos, Gloves and Boots weren't fully rendered.
-His Cape has weird physics.
-He is simply immortal as a Living Bug, Glitch if you will.
-He can throw Projections into people's minds, using his Eye.
-He can turn invisible with a Glitching Effect, confusing whoever is in his path.
-He can also warp to the Glitch Dim and also warp any Entity to it.
-As a non Human being, he does not need to sleep, eat, or do anything that keeps a Human alive.
-He can often be referred as "The Crazy Cyclops".
-His Creation isn't explained, but it is said that the first Player to go in the Glitch Dim can turn into him, who was it, is still a mystery..
-His Gloves and Boots also contain Repulsor Blasts, that can make people hallucinate as well and become nauseous.