The full power laser has a reddish color when shown coming out of the laser gun, but the same blueish color as regular power is shown when the laser hits Black Beauty.
The laser and its tripod mount fit into a suitcase.
When Steve packs the laser up after shooting his former compatriot through the window, we see that the laser can be powered through a simple household outlet.
When Ms. Case is in Brit's office and given the money to deliver, she is also handed a direction finder (a.k.a tracking device) disguised as a compact. Here and only here, do you see the secret compartment in her purse as she hides the compact.
First time you see the Hornet's Sting remove an item from an opponents hand. In this case, it is a gun.
Kato seems to have a lot of lines in this episode.
You see a great move by Kato when he takes a flying leap and nails a criminal in the face with his boot, causing the crook to make a splashing finish.