We have the first appearance of the Z-6 rotary blaster cannon and reciprocating quad blaster "Cip-Quad", used by the ARC Troopers.
On Coruscant we see a Pa'lowick named Sam Snootles, a possible relation of Sy Snootles.
Chiaroscuro: Anakin's knighting ceremony. A darkened chamber, with only the Jedi Council's lightsabers for illumination.
Crippling Overspecialization: A major factor in how the ARC Troopers are able to hold off General Grievous. For all of Grievous's terrifying skill with lightsabers, his lack of force-ability leaves him unable to deflect blaster bolts like the Jedi can. So when confronted by a barrage of blaster fire from the ARC Troopers, all Grevious can do is run for cover and try to flank them.
Gunship Rescue: A custom-painted Republics gunship saves the Jedi survivors from General Grievous just in the nick of time, in a move almost as cool as Grievous hunting them down in the first place.
Handy Feet: Following on from the previous Chapter, the clones arrive just as Ki-Adi-Mundi is overpowered by General Grievous who is wielding three lightsabers, one of which is held in his foot.
Important Haircut: The completion of Anakin's training as a Padawan and his becoming a Jedi is signified when Yoda slices off Anakin's braid with a light saber in a Jedi Knighting ceremony. Later Anakin has it sent to Padme, who keeps it in a small jewelry box with the pendant he carved for her back in The Phantom Menace.
Knighting: Anakin was knighted by Yoda and the Jedi Council with a lightsaber. It was to sever the "Padawan Braid" that Anakin had, which was delivered (secretly) to Padme, which symbolized the attainment of Jedi Knight rank.
Moral Myopia: Minor example. When a suggestion is made to forego Anakin's trials and promote him early, the one arguing the most against it is Jedi Master Oppo Rancisis:
Rancisis That is what concerns me. To walk the path of the Jedi, one's spirit must be strong. That requires discipline. And he has often disobeyed you, has he not Master Obi-Wan? Yoda: Did you not disobey me from time to time in your youth, Master Rancisis?
Sexophone: Used as a joke when C-3PO first shows off his new gold plating.
