The Essential Companion of Heroic Adventurers
The moment-to-moment interactions with NPCs are certainly funny and the partner characters who join you throughout the game are the key elements which make the story worthwhile.
This version of the Mushroom Kingdom matters to me a little more now because I was given the responsibility of putting it back together.
Depending on the boss what actions are going to be most effective will change, and the way you move will be altered by their abilities.
Adventure Rules 