While Mario Party is primarily a multiplayer series, Island Tour features a dedicated single-player story mode called .
After being invited to the Party Islands, Bowser becomes jealous and builds a massive tower to lock away all the fun in bubbles. He uses a bubble machine to create "bubble clones" of Mario and his friends to guard the tower.
The mode culminates in a final battle against Bowser in Bowser's Sky Scuffle . Defeating him destroys the bubble machine and unlocks Bowser Jr. as a playable character. Key Features
Every fifth floor features a boss-type minigame.