When Spit tags over Ramo's burner with the Dyer Ave train, you can see the "Sp" in "Spit" from a previous take.
When Lee first starts dancing at the Roxy battle, he has a knee pad on his left knee. As he starts his backspin, it disappears.
During the Roxy breakdancing battle, the three actors to the left of Rae Dawn Chong - a brunette woman, a blonde woman, and a man with a mustache - keep change the order they are standing next to one another.