After the kid falls into the toxic waste he turns into the avenger...right? This happens when the Toxic Avenger comes back to the fitness club in the same seen where the guy gets his head crushed by the weights. The camera is in the view of the avenger when he walks in everbody starts panicking, if you watch the right side of the screen you can see the origional kid before he turned into the Toxic Avenger- Wearing the same clothes cross the screen!