Ghosts and maybe bananas.
some you find in treasure chests
You can use items or hit a ball that touches one of the pictures on the floor and they will come to life
to unlock everything you can either unlock characters/items by playing expiedition mode or doing challenge mode which you can unlock by defeating Bowser Jr through many journeys in super sluggers
Toads are little mushroom type people. THE Toad is the specific Toad who is in games like Mario Kart or Super Mario Sluggers. He has a hat with red spots.
yes
you can't
one when you can get new items
No but there is some for items and levels
You don't get badges, you get items.
password super mario3
No, they are just to show what items you have encountered. That is how it seems. Japanese games often have trophies and other sorts of things like this.
If there's a bomb or bullet in that place,then you can try that.