I LOVE Mario Party 3! My favourite of the series. This one had 2 new characters (Waluigi and Daisy) which was great when people stole Yoshi from me I would pick Waluigi. It had a file system strangely but it was because it had a story mode which was awesome because Bowser is such an idiot in it (he even said so himself.) There wasnt a Bowser themed board in this one because Waluigi ends up being the bad guy so he has a board instead. The shop is much more improved from MP2 - there are many more items, they are priced a lot cheaper and there are so many that when you pass through the shop either Baby Bowser or Toad will pop out with their items (Toad has items generally to help you and Baby Bowser has items to mess with other players) There are even rare items you can obtain like a watch that makes it go to the last 5 turns no matter what turn it is or a coin to call Shy Guy on any player you want among other items. There are 80 new minigames for this one (my favourite is Eatsa Pizza.) A new feature is the Duel Mode where 2 players can battle it out on special Duel Maps with partners (like Boo, Toad, Baby Bowser, Whomp, etc) and use them to attack the other player until they have no hearts left. Players roll the die like on Battle Royal Map and move around the board trying to catch up to the other player and attack with your partner. But they have salaries and if you run out of coins they leave you. There are different themed Duel Maps like one with many warp pipes or a giant fan in the middle which blows your partners to the opposite side of you.
All in all, Mario Party 3 is a great game to play with a bunch of friends whether they are gamers or not.