Batman: The Brave and the Bold

Batman: The Brave and the Bold is an animated series somewhat based on DC Comics' The Brave and the Bold comic series, which features two heroes working together. This cartoon used to air on Cartoon Network. It centers on Batman as he teams up with various (lesser-known) heroes to thwart the villain in each episode.

Menace of the Conqueror Caveman!
Season 1, Episode 17 Airdate: May 15, 2009

Screenshots

Duel of the Double Crossers!
Season 1, Episode 21 June 12, 2009

Powerless!
Season 3, Episode 10 Airdate: October 21, 2011

She first appeared cameo in this episode, when she was wreaking havoc across the city. Captain Atom believed Batman could be easily killed by supervillains, including Giganta who would simply step on him.