The flashtubes can be entered by means of a blue portal that appears on the ground or in midair. Those who use the flashtubes to enter Galactic Headquarters enter a system of tunnels below the ground and slide into the base. During Season Three, Atomic Betty's crew would change into their uniforms mid-slide. File:Opticaflashtube.pngThey also are like slides. Sparky claims to be the flashtube master.