Bonus block

A Bonus Block is a special green block with a white star on it that appears in certain levels of Super Mario World and Super Mario World: Super Mario Advance 2. If Mario and Luigi collect at least 30 coins in the level and then hit the block, a 1-Up Mushroom will pop out as a reward. If they do not have at least 30 coins, the brothers will only obtain a single coin. Some of the levels this block can be found in are Yoshi's Island 3, Butter Bridge 1, Donut Plains 3, and Chocolate Island 3. The brothers can also stand on top of the block.