You must have defeated Blizzard Midbus first. Make Bowser breath the cold air from Blizzard Midbus. This will let Mario and Luigi explore the Airway. Hope I helped! P.S. The Airway is the best place to level up fast. :)
You can get Beans, and an SP: Magic Window.
There are only 2 files in Mario and Luigi Bowser's Inside Story.
no
not really
You can only do it with Mario and Luigi. For Mario, press A. For Luigi, press B.
noone
You have to complete the pumpworks level
on the map
you have to hit the shell block.
you should definitely get bowsers inside story. It is tons of fun. I LOVE IT!!!!!!!!!!!
By defeating him in battle.
647896478263486464682643736