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Question & Answers
Answer from: *~
Go to the "red mushroom house" where you would usally start the new world and wait maybe 3 or 4 seconds and hopefully that works
Answer from: Mariofan132
You would usually find them from flying ? blocks or red mushroom houses
Answer from: gunking45
? blocks and red mushroom houses easiest way is do 1- 2 to get fire flowers then try to get the mystery block to 1- A and hit it it should be a blue shell
Answer from: player
You can go to World 3 cannon stage, Then go to the right of the cannon, you can see a random item block there.Hit it, it may be a bull shell.