- For the similar utility summoner, see Sardines.
The Red Koi Fish is what you use to summon the Mighty Dragon in the Year of the Dragon. When the player shoots red koi fish out of the slingshot, the Mighty Dragon comes and defeats all the pigs in the area. When the player touches an eye symbol next to the pause sign, all the birds disintegrate and a red koi fish hops on the slingshot.