How do u create moves?

I've seen tons of people have these really cool moves e.e

Like on Arc of the Elements, how did they create these moves?

if someone could tell me the basics, i'd really appreciate it

First you need to make thee animations, you can use roblox animation editor (Watch a YouTube vid if you don't know how to use)

Then program the moves in so like:

Player = game.Players.LocalPlayer
Mouse = Player:GetMouse()

Mouse.KeyDown:connect(function(key) 
	if (key == "q") then -- For example, if you press q you do a flip or something.
		currentAnimTrack = Player.Character.Humanoid:LoadAnimation(Animation Id Here)
		currentAnimTrack:Play()
	end
end)

This has not been tested but you get the idea.