Mini Board Mad-Dash
From the Super Mario Wiki
Mini Board Mad-Dash is a board from the extra room hosted by Thwomp in Mario Party 4. According to Thwomp, he built the board in two months, and is proud of his work. Here, Thwomps are in charge of the shops, and many Thwomps, Whomps, and a Ztar can be seeing hopping and dancing around under the board.
There are no stars to collect on the board, no special events, and no minigames at the end of each round, though landing on a Bowser Space can still trigger a Bowser minigame should he pick "Bowser Game". Each player starts with 100 coins, and the goal is to have the highest coin total before the end of the game. To do that, there are many Mushroom Spaces and Item Shops around, where the players can get Mini Mushrooms, Super Mini Mushrooms, or other items to utilize Gates to avoid the Red Spaces and Bowser Spaces at the top of the board, and to steal coins from other players.
Unlike on every other board, the Mushroom Spaces here only award players with Mini Mushrooms. Super Mega Mushrooms may still be acquired at the Item Shops, however.