Super Sentai, and by association Power Rangers, often add to the heroes' arsenal about midseason... usually just in time for the Christmas shopping season.
- The Sixth Ranger, which also offers a new Story Arc.
- A Super Mode, with new weaponry and changes to the suit. This can either apply to the whole team or be exclusive to the Red Ranger - or they'll do one of each version.
- New Humongous Mecha, usually opening up new combination possibilities. These may be tied to the above upgrades; the Sixth Ranger usually brings his own mecha when he shows up, and other sets of mecha may be related to the Super Modes.
- Because Mighty Morphin' Power Rangers was utilizing multiple Sentai shows, the new weapons and mecha were functional mostly for running out of footage of the previous mecha. Incidentally, the similarities in mecha designs between Zyuranger and Dairanger made for a near seemless evolution between the dinozords and the thunderzords.
By series
- This trend was introduced already in the first Super Sentai series, Himitsu Sentai Gorenger. After the Gorenger lose the Variblune and their bikes to one of the villains, their weapons and suit are enhanced (though there's no visible change to their suits), new bikes, and a replacement airship named Varidorin.
- J.A.K.Q. Dengekitai get a new cannon when Big One is introduced.
- In both Dai Sentai Goggle V and Kagaku Sentai Dynaman, the villains start creating stronger monsters immune to the Rangers' Finishing Moves, so they learn new ones to use on them.
