Disguised Goomba is a type of Goomba that appears in the Super Mario series. Disguised Goombas wear masks of Mario's face, and take two stomps two defeat as opposed to one. Otherwise, they act identically to normal Goombas. They first appeared in New Super Mario Bros. All-Star Adventure.
Disguised Goombas debut as an uncommon enemy in New Super Mario Bros. All-Star Adventure, where they simply serve as more powerful versions of the regular Goomba enemy.
Disguised Goombas reappear in Super Mario End, alongside Disguised Wigglers. Little is known about their appearance in this game, but it's highly likely they act the same way as they did in New Super Mario Bros. All-Star Adventure.