- "The Royal Sticker... Since it was stuck on that Goomba, he got its power..."
- ― Kersti
Goomba Fortress is the sixth and final level of World 1 in Paper Mario: Sticker Star.
Goomba Fortress is very large in size. It has many rooms, traps, and puzzles. It is also mainly brown in color.
Mario and Kersti finally reach Goomba Fortress where they know where one of the Royal Stickers is hiding. Ready to meet them at the entry are two Goombas, though they are quickly vanquished. After battling through many Goombas and Bomb-ombs, they finally encounter the first boss in the entire game: Megasparkle Goomba. Megasparkle Goomba gains it's strength with the Royal Crown on its head. Mario manages to defeat this very tough boss and acquire the first Royal Crown in the game. But his journey is only just beginning.
- Fire Flower (x3)
- Ice Flower (x2)
- Spike Helmet (x3)
- Shiny Jump
- Jump (x4)
- Line Jump
- Poison Mushroom (x2)
- Shiny POW Block
- Trumpet (needed to enter World 3)
- Squirt Gun (secret door)
Megasparkle Goomba has a multitude of attacks. He can fold into a cylinder and attempt to roll over Mario. After performing that attack, he rolls himself into a cone. This hurts Mario if he jumps on him. He will also send the individual Goombas who make him up at Mario.
Eventually, Mario damages the Megasparkle Goomba to a point that it becomes visibly damaged. If Mario uses the Scissors then the boss fight ends there (almost). Otherwise Mario is forced to do battle longer. Eventually, the individual Goombas abandon the Megasparkle Goomba and leave. The boss attempts to continue the battle despite being on 1 life, but is inevitably vanquished.