The only way to get the cannon is to talk to the red bob-omb. To do this, you must enter Wet-dry world at the highest point in the painting possible. Then swim over, jump onto the platform beneath the red bob-omb, and from there jump to the platform where he is. Talk to him, and you've unlocked the cannon in Wet-Dry World.
Chat with our AI personalities
To get to the Bob-omb Buddy in Wet-Dry world, you simply jump into the painting as high as you can, go over to him and jump up onto the platform.
wet = bet = bat = bay - day - dry
there is no hover fludd in super Mario 64. that is from super Mario sunshine.
the cannon is in world 5 you have to get all the star coins in i think 5-3 or 5-5 im not sure o sorry there is no cannon i tried in world 5 it goes to world 8
if u want the first 2 in wet dry world : first :when u get there hit the orange switch then get the silver star :second: drain all the water out and kill the fishies than ground pound the brown box on the floor find under watr city another of stars