Referee: (measuring the crack in the earth from where Numbuh 4 crashed) Eleventy-billion inches!
Chip: Wow! A new butt-busting record.
Nick: Wallabee Beetles! How does it feel to have the coveted Butt-Busting trophy back?
Joey, Numbuh 4's baby brother, temporarily teams up with the Safety-bots when Numbuh 4 gets angry with him.
Operation S.A.F.E.T.Y. is a Numbuh 2 and 4 episode.
S.A.F.E.T.Y. stands for Senator Attacks Foes Endangering Today's Youth.
KND Vehicle: D.R.A.G.S.T.U.H. Dynamic Racer Always Goes Speedily Tearing Up Highway.
KND Technology: H.A.I.R.C.U.T.T.E.R. Hacking Armament Is Really Completely Unsafe, Though Totally Exterminates Robots.
Credits: The kids and Senator Safely playing with and popping the leftover bubble wraps.
This is the first full episode of the series in which not all the core KND appear. Here, Numbuhs 1, 3, and 5 are absent.
Credits: Everybody is at the playground playing with bubble wrap, including the senator.
Numbuh 4 episode.
Indiana Jones and the Last Crusade:
When Numbuhs 2 & 4 and Joey round a curve in the road and enter a tunnel with a flying Safety-Bot in hot pursuit, the Safety-Bot smashes into the walls of the tunnel and his head goes sliding passed the team as they're driving through. This is similar to the Nazi Messerschmidt that flew into a tunnel following Indiana Jones and his dad.
The way that the Safety Bots work, they are a parody of the Sentinels from X-Men with it's leader being a parody of Master Mold.