You'll need to use all your paper prowess to beat the final boss of Paper Mario: The Origami King. Keep your wits about you (and this guide handy) and you'll get through it in no time.
How to Beat The Origami King OIly in Paper Mario
King Olly Boss Fight (All Three Phases) - Paper Mario Origami King
Peach's Castle - Origami Castle - Paper Mario: The Origami King Guide - IGN
Paper Mario The Origami King Olly Boss Fight tips - How to beat Olly, the final boss
Origami King Final Boss - Paper Mario: The Origami King Walkthrough
King Olly Boss Fight + Ending - Paper Mario Origami King - Part 22- Nintendo Switch
Peach's Castle - Origami Castle - Paper Mario: The Origami King Guide - IGN
Paper Mario: The Origami King: How To Beat King Olly (Final Boss)
King Olly Boss Fight, Final Boss, Tips & Tricks, Paper Mario The Origami King
Final Boss - King Olly Guide Paper Mario Origami King - GameWith
Paper Mario: The Origami King - Defeat Ollie