New Super Mario Bros. Wii: No Cannon in World 3—Cannons Appear Later

There is no cannon in World 3 of New Super Mario Bros. Wii. Cannon pipes (which launch you to a later world) appear only in:

• World 1-3 (secret exit → World 4)
• World 2-6 (secret exit → World 5)
• World 4-2 (secret exit → World 6)
• World 5-? (varies) — check specific level.

How to Actually Reach World 5

1. Complete World 1 (Boss: Larry Koopa).
2. Complete World 2 (Boss: Morton Koopa Jr.).
3. Complete World 3 (Boss: Wendy O. Koopa).
4. Complete World 4 (Boss: Iggy Koopa) — including the castle.
5. World 5 unlocks automatically on the world map.

If You're Stuck in World 3

• World 3-3: Ice physics — hold B to sprint, tap jump for micro-hops.
• World 3-Castle: Wendy's rings — jump over low, duck under high (crouch).
• Secret Exit in 3-? (if any): Check Star Coin guides — some unlock mushroom houses, not cannons.

Tip: Star Coins unlock hint movies & backgrounds. 100% file = all 240 Star Coins + all worlds + all levels.