E. Gadd Space
From the Super Mario Wiki
E. Gadd Spaces are one of the Spaces in Mario Party Advance's Bonus Board. They are named after Professor Elvin Gadd. When an E. Gadd Space is landed on, the players must play a Gaddget randomly chosen from a predetermined list. Depending on the Gaddget, either the winner receives an advantage, or the loser receives a disadvantage.