Kid Icarus is a unique enemy that appears in the Waterfall section of the Contrabobo level.
Origin
Kid Icarus is not actually named Kid Icarus instead he is named actually Pit who is a angel from Angel Land & he is the main protagonist & playable character of the NES game Kid Icarus, his alternate name is a reference to the show Captain N: The Game Master, where Pit was infamously called Kid Icarus by Captain N.
In The Game
Kid Icarus is one-shot enemy that only appears once, Pit is actually flying enemy that would fly & shoot arrows at Abobo, Abobo can kill him in a few hits.