Nowadays we know her almost exclusively as Princess Peach but in SMB3 she signs her letters “Princess Toadstool” and that’s good enough for me. Yes, she’s kidnapped again, despite here playability in the much maligned SMB2. She does help a little as she leaves power-ups behind with letters for you. She gives you your first P-Wing and that is something to be thankful for.
Princess Toadstool is the entire reason you’re on this adventure. You may want to stop Bowser and save the kings but in the end the only motivator is some sweet Toadstool lovin’.