Ikkakumon is one of the tamer's digimon from the TV series, Digimon Adventure & his tamer is Joe. He is a sea animal type digimon who's only & special attack is Harpoon Torpedo.
Gotta love the English voice actor when he shouts, "Harpoon Torpedo!". Always gonna be a favourite since I have the video of Gomamon digivolving for the first time
One of my favorites.