If you've played the original Super Mario Bros., you've probably noticed that blocks can contain a Mushroom or Fire Flower depending on if you're big or not.
However, in Super Mario Maker, putting a Mushroom into a block always gives you a Mushroom and putting a Fire Flower into a block always gives you a Fire Flower.
Is there any way to replicate the Super Mario Bros. behavior in Super Mario Maker?
Best Answer
To combine a power-up with a Super Mushroom in a ?-Mark Block:
Source