Carmen giving Lee Jordan an earful after he flings Zack and Ivy into the ocean at the start of Part 2. You do not threaten children, especially not these two in particular, in front of Carmen Sandiego. Also heartwarming, since it demonstrates the odd bond between Carmen and the two detectives.
Like "The Stolen Smile", Ivy manages to bust down a door held shut by a thick piece of lumber.
Zack and Ivy try their hands at being Magnificent Bastards by using a bit of subliminal manipulation to lure Carmen into a trap. Knowing that Carmen had already had two narrow escapes, they'd left a clue suggesting, ostensibly, the White House Christmas tree. However, the message used the phrase, "Skating on thin ice". Knowing that after a couple of close calls, White House security would be a bit too daunting for even Carmen Sandiego, and the tree at Rockefeller Plaza in New York would be an ideal famous tree for Carmen to nab, Zack and Ivy laid in wait for her there.
Carmen then gets a moment of her own for still being able to make off with the famous tree.
Dr. Maelstrom in general is a meta example for being depicted using both C4 regularly, and even briefly breaking out an honest-to-goodness flamethrower. How often do you see either of those in a Saturday Morning Cartoon?
In Part 2, Carmen constructs a Viking longboat solely off a postcard image reference.
Also in Part 2, Ivy demonstrates her leg strength yet again as she frees herself from a pillory just by flexing her legs.
Later on, Zack and Ivy engage in a bit of MacGyvering, making an atlatl from a busted chair leg, flinging a spear, which damages Carmen's escape vehicle while, at the same time, providing a zip line for Zach and Ivy to quickly get from a tower to the ground and take out the villains.
Of particular note, Ivy uses her flying kicks to take down R.B. Traitor, a man who is quite muscular and at least twice her size, if not more.