Geki Bat (ゲキバット) is one of the three "Legendary GekiBeasts" from Juken Sentai Gekiranger, belonging to Retsu Fukami, a.k.a. GekiBlue. Retsu unlocks the beast by mastering the Bat-Fist (Batoken) style, a martial art passed down to him by the wise Beast-Fist master Bat Li. Fittingly, Geki Bat is built entirely around mobility and aerial combat: its bat wings fold up into blades, and the whole GekiBeast trades bulk for pure speed.

Unlike GekiTiger or GekiElephant, Geki Bat never fights as a standalone robot – it is purely a support/armament GekiBeast that docks onto the existing combinations and grants them flight. With GekiTohja it fuses into GekiBatTohja; with the wolf-augmented version it forms GekiBatTohja Wolf (debuting in episode 38, formed by Gou and Retsu, blending Retsu's aerial skill with Gou's kicking techniques); and with the hulking GekiFire it becomes GekiBatFire. In every form Geki Bat brings the same trick – it lifts the giant into the air and ends the fight with a flying dive-bomb barrage of punches while the wings serve as slashing blades. Alongside GekiShark (Jan/GekiRed) and GekiElephant (Ran/GekiYellow), it completes the trio of Legendary GekiBeasts.

In Power Rangers Jungle Fury the counterpart is the Bat Animal Spirit, summoned by Theo (Blue Ranger), who learns it from the blind bat master, Master Swoop. It joins with the Jungle Master Megazord to create the "Jungle Master Megazord with Bat Power" – widely cited by fans as the simplest transformation of the entire season, since the bat body just folds onto the Megazord's back. The payoff is the same: flight, plus a finisher built from a barrage of energy punches.

On the toy front, Bandai Japan released Geki Bat as a standalone DX GekiBeast in the Juken Gattai line, engineered to plug into both DX GekiTohja and the big DX GekiFire combination (built from GekiGorilla, GekiPenguin and GekiGazelle); a Minipla model-kit version was also produced. Bandai America sold it for Jungle Fury as the "Bat Zord," included in Set B of the Micro Animal Zords (Spring 2008, alongside the Elephant and Shark Zords), and it also appeared as the electronic "Jungle Master Bat Ranger" from the Animorphin line. A neat collector's piece: small, but the key that lets any Gekiranger giant take to the skies.