The Flying kick is a move used by Hoppy and Sarge in C2: Judgement Clay. It is a grounded forward kick that has different properties for each of its users.
Hoppy's Flying kick[]
Hoppy's flying Kick is a fast kick that strikes once and causes knockback. It does have a small recovery time however, and leaves the user opened to attacks after being used.
Sarge's Flying kick[]
Sarge's Flying kick is fairly similar to Hoppy's, but has once crucial difference, it has no recovery time or startup time meaning it can be spammed quickly. This makes it far more powerful than that of Hoppy's variation as it packs all of the punches with none of the wait time