The Spot was an Alchemax scientist who sent a radioactive spider to his and Miles' dimension,and the spider bit Miles,making him Spiderman. Miles destroyed the collider, and The Spot was near the explosions from the destruction, and he was made into the Spot, he's skin is now fully white with black holes on his body, making him look like a cow. The Spot uses the black holes on his body  to create portals to places, if he uses all the holes on his body,then he's out of portals. 