Stardust Fields

The Stardust Fields are the border region between the Beanbean Kingdom and the Mushroom Kingdom. This odd place is mostly in the Beanbean Kingdom, but a little bit is in the Mushroom Kingdom called the Beanbean Borderlands. The Beanbean Borderlands is the first place that Mario and Luigi visit when Bowser's Koopa Cruiser crashes. The two sides are separated by the Border Bros., who are similar to Hammer Bros.. To cross the border, they must complete a round of jump rope. Mario and Luigi can also return to do the Border Jump again in exchange for Woo Beans. Although, after the Mushroom Side is crossed, you can't go back.

After doing so, Mario and Luigi met the large Tolstar. The Mario Bros. had to free Bowser from Tolstar's cannon. Tolstar agreed to release them if they give him 100 Beanbean Coins. The Mario Bros. had to go to the fields and search for more Beanbean Coins. They also learned a couple of Bros. Attacks from the Starshade Bros.. But Tolstar had scammed them, and then attacks the Bros. Once they win, the Starshade Bros. come back out, irritated by the noise of the battle. They light the cannon Bowser is in, and he goes flying who-knows-where.

The area is inhabited by Fighter Flies and Bill Blasters. The first Warp Pipe is also found here.