 In Japan, there are several similar dishes to tamagoyaki, such as usuyaki-tamago, kinshi-tamago, and iri-tamago.They differ by their thicknesses, and the manner in which they are cooked.Usuyaki-tamago is thinner, kinshi-tamago is a kind of usuyaki-tamago that cuts like fine threads, and iri-tamago is similar to scrambled eggs.