How is it possible that Lightning jumps so high?

[Aulayna]

Perhaps gravity is just weaker in general?

[Freya]

Oh yeah I forgot she did that on the train.... I think that was her just being a badass at the time though.

[Lucrokender]

Seeing as Vanille and Fang knew by instinct how to fuse into a monster, and then, also by instinct, turn into crystal, and save the world, I'd say Lightning jumping a few extra feet isn't the worst out of control thing on Pulse.

Then there's Hope traveling through time willy nilly without creating a paradox, and Noel obviously being Sora.

The game is pure madness.

I tell you Hwat.

[DanielCLFFF13]

From Final Fantasy 13, Lightning has Antimatter Manipulation Principle (AMP) technology. The explanation from the datalog which is from Final Fantasy 13. Antimatter Manipulation Principle (AMP) forms the foundation for a variety of technological wonders, enabling phenomena ranging from phase-space interference to the manipulation of gravitational force. Humans ordinarily lack the means to weild magic, but through the use of manadrives-another product of ther principle-it is possible to synthesize its effects. well if I'm not wrong
But this my opinion

[Raistlin]

Seriously, I mean I know she's a l'cie now but come on, that's some Olympic trout. Oh 200 ft climb NO PROBLEM! I'll just flip my way up there!

Hey, it was good enough for Advent Children.

[Skyblade]

Oh yeah I forgot she did that on the train.... I think that was her just being a badass at the time though.

Yep, except that that device breaks almost immediately thereafter.

[Jiro]

The anti-grav stuff was used a few times, though only in really necessary parts as something of a plot device. Lightning isn't unique in her ability to jump that high though; you can make anyone jump along those sorts of sections depending on who is the leader. The whole party is supercharged.