Six Royal Stickers are scattered in Paper Mario: Sticker Star. Bowser breaks the Sticker Comet during the annual Sticker Fest, and its six Royal Stickers land in different parts of the Mushroom Kingdom.
Mario and Kersti travel through six major areas to recover them. Each Royal Sticker is guarded by a boss, including Megasparkle Goomba, Tower Power Pokey, Gooper Blooper, Mizzter Blizzard, and Petey Piranha. A final sticker remains associated with Bowser and is obtained during the endgame confrontation.
The number is easy to confuse with the game’s other important sets. Sticker Star has six Royal Stickers, but Mario’s broader adventure also involves ordinary collectible stickers, Thing Stickers, and HP-Up Hearts. The Royal Stickers are not merely powerful battle items: they are fragments of the comet and the key to restoring its wish-granting power.