How do you unlock the cannon in World 7 on Super Mario Bros DS?

To unlock World 7, do one of the following:

Defeat the World 5 Castle Boss as Mini Mario.
Unlock the World 4 Cannon (you need to find the Secret Red Flag Exit in the World 4 Haunted House)

Is there a cannon in World 7 Super Mario Bros?

No, but there is a secret exit in the Fortress. Go to the moving platform below the 2 Bob-Omb Mortars on the right side (about the height of Super Mario) and walk right through the wall. The hidden exit takes you to new levels. You can’t have a cannon in world 7 because world 8 is Right after it.

How do you get a cannon in World 7?

Go to the moving platform below the 2 Bob-Omb Mortars on the right side (about the height of Super Mario) and walk right through the wall. The hidden exit takes you to new levels. You can’t have a cannon in world 7 because world 8 is Right after it. AND world 9, you can’t beat it unless you have all the star coins, including the ones from world 8.

How to get the canon in World 4?

Use your mini power now. Go to the left and jump on the red switch and quickly go to the green pipe. DON’T USE THE PIPE! Instead, jump on top of the pipe, jump up, then wall jump on the left wall to go to a platform up at the right. Wall jump up and use the door. Then get the red flagpole. You got the cannon! Why are you reporting this answer?

Where do you get the warp cannon in Super Mario Wii?

The Secret Goal leading to this cannon is in World 4-Fortress. In the falling block area where the final Star Coin resides, there’s also a secret passage to this fortress’s red flag exit. Let the block nearest to the wall under the coin fall and then run over it and into the secret passage.

How do you get the canon in Super Mario Bros?

Go to the left and jump on the red switch and quickly go to the green pipe. DON’T USE THE PIPE! Instead, jump on top of the pipe, jump up, then wall jump on the left wall to go to a platform up at the right. Wall jump up and use the door. Then get the red flagpole.