Capture your enemy and save Princess Peach. Mario must use Luigi's dreams to enter the dream world. Between reality and the dream world, Mario must solve puzzles, fight enemies, and work with Luigi's imagination!

In this fourth installment of the popular Mario & Luigi RPG series, you'll find Princess Peach and brothers Mario and Luigi, who have been invited to the mystical island of Pi'illo to explore the sights of the island's mysterious owner, Dr. Snoozemor.

After arriving on the island and being greeted with a warm welcome, Dr. Snoozemore is missing, and the cycle of events begins, eventually leading to Princess Peach being kidnapped to Dream World by a new enemy, King Antasman.

When you win a battle, the game levels you up, just like in a classic RPG with experience points, upgrades like increased health and strength. There are also classic features like Bro Points, which allow for special attacks.