Conference Hall

The Conference Room is one of the many rooms in Peach's Castle and judging from where Bowser fell, this on the second floor of the castle. At the beginning of Mario & Luigi: Bowser's Inside Story, a meeting is held here to discuss the blorbs. A new disease that is plaguing the kingdom. Princess Peach, Toadsworth, Toadbert, Dr. Toadly's Intern, and the Mushroom Retainers are present. Later Starlow arrives but can not stop the blorbs. After arguing, the intern leaves. Soon Mario and Luigi arrive at the meeting (though Luigi falls asleep).

Then Bowser intrudes and asks to be part of the meeting. After he is rejected, he gets angry and fights Mario, even though he is weakened by Starlow and Peach. Mario easily defeats Bowser. Peach flings him out of the castle and into Dimble Woods, where he lands unconscious. After Bowser wakes up, he receives Lucky Mushroom and returns to the castle. Once back at the castle, he reveals the ability given to him via the mushroom and inhales everyone. At the end of the game, Bowser returns to the confrence room for his final battle. Then Mario and Luigi defeat the true final boss. They are released from his body after this.