First, have the adult Mario and Luigi use the Bros. Ball and have them roll into the cannon. Then, have the babies hit the switch, and the cannon should launch Mario and Luigi.
look up super Mario bros Cannon world 1 and level 1
You have to finish a level with the secret goal on the level closest to the cannon.
you defeat mrs. thwomp and then you go into the volcano.
if you have unlocked a cannon you will be able to enter a level then when your at the cannon enter it like a pipe
First, you've got to look at the levels around it and find the one that is closest to the cannon. Go into the level and somewhere in it you will find a secret exit. After you have found it the cannon level will be unlocked. There are no enemies in it so no need for preparation. In the cannon level there will be the cannon a little to the left of where you start. Enter the cannon like you would a pipe and it will blast you past several worlds. To find the secret exit to the levels I suggest that you get on youtube and search for Super Mario Wii cannon level or something. Happy level skipping!
Complete level 6 sfeb5h6bgtegbu
Well Just level up til you get to a level high enough to hit heaps and that's it.
beat the level by going through a secret pipe.(red or Green)
By getting a cannon or by winning the fifth castle and then the sixth castle.
Easy. If you unlocked the Volcano tile set, Lava should be in there.
Go on the level 1-3, and at the part where the fake wall to get a few coins (not the star coin part) use your Yoshi (or a mini Mario or propeller cap) to jump on top. Then you run until you hit a invisible pipe and you'll be at the red flag and you beat the level. BOOM! your at the cannon.
You will have to get the red flag on the level that leads to the cannon . In order to get the red flag you have to find the shortcut way to go on that level . Extra help needed ? Look up how to get th red flag on youtube and it should be somewhere [ :