Here is an overview of the game, via Nintendo.com:
A Superstar Collection of Classic Nintendo 64 Boards
Calling all Superstars! Mario Party is back with five classic boards from the Nintendo 64 Mario Party games. Frosting meets flowers as you race to get the most stars (and sabotage your opponents) on the Peach’s Birthday Cake board from the original Mario Party game. Or watch the countdown that unleashes Bowser Coin Beam and hold onto those coins on the Space Land board. The tides can turn quickly in Mario Party, so stay vigilant, partygoers. This and all other modes can be played online, too!
100 Classic Minigames Return from the Nintendo 64 and Nintendo GameCube Games and More!
Try your hand at a Superstar collection of minigames from throughout the Mario Party series. Whether you are saving up coins for stars in board game mode or practicing in free play, there is nothing quite like being the last one standing in Mushroom Mix-Up or Shy Guy Says. All minigames are played with button controls, so you can stick to the Joy-Con controller or bust out the Nintendo Switch Pro Controller or a Nintendo Switch Lite system.
Party with Superstars Near or Far
Bring the party anytime, anywhere with same-system, local wireless, or online play. Matches with friends in board game mode save each turn, so feel free to take a break and pick up where you left off. Use stickers to praise or pester fellow players as you race across the board collecting stars. All modes support online multiplayer, so you can hop in with friends for a few minigames or a marathon 30-turn match. Victory is just as sweet (and stealing stars is just as satisfying) from anywhere across the globe.
Watch the announcement trailer and gameplay footage below. View the first screenshots at the gallery.