Goomba idols

A GoomGod is a deity that appears only in Mario Party 8. Although the GoomGod has never actually been seen, its voice is heard when you reach its special treasure chest on a sacred island. The sacred island can be accesed by having a character land on a shiny, golden "Lucky Space" in Goomba's Booty Boardwalk. If a character reaches the GoomGod's special treasure chest, it will give the character a Star and send them back to Start.

Even though the GoomGod has never been seen, it is probably a sacred Goomba that lives in a fictional Heaven. This is believed because of the large, grey Goomba statues and shrines that exist on the island.