World Flower is the third bonus world of the game and in order to get to it, you simply need to complete World Mushroom-7: Broken Blue Bully Belt. It is similar to World Mushroom, as it contains remixed courses from the main game. There is a total of 12 normal levels here, with no other types of courses. Also, you won’t find Stamps in any of the levels, so you only have to collect the three Green Stars. Despite the simplicity of things, it does contain some quite annoying stars to get, so be prepared with a lot of lives.
- World Flower-1: Switch Shock Circus
- World Flower-2: Floating Fuzzy Time Mine
- World Flower-3: Piranha Creeper Creek After Dark
- World Flower-4: Faster Fort Fire Bros.
- World Flower-5: Sprawling Savanna Rabbit Run
- World Flower-6: Shiftier Boo Mansion
- World Flower-7: Pipeline Boom Lagoon
- World Flower-8: Blast Block Skyway
- World Flower-9: Towering Sunshine Seaside
- World Flower-10: Honeycomb Skyway
- World Flower-11: Spiky Spike Bridge Sneak
- World Flower-12: Boss Blitz