If you hit the underside of a yellow !-block, a Super Mushroom will come out.Until then, only the outlines of the !-block appear. There are 4 different types. !-blocks only appear after you've pressed the big !-switch with the same color in a Switch Palace. ?-blocks first appeared in Super Mario Bros. Grab it and run further, until you see another ?-block, repeating the trick, and so on. Jumping against it while you're still invincible will sometimes pop a new Starman out of it. At the start of some courses is a Starman, if you grab it and then run you'll sometimes find another ?-block. They sometimes appear if you press a P-switch, creating new paths for you. You can't break ?-blocks by spin-jumping on them. When the block has no more items in it, it will turn into a solid block. To get as much coins out of a ?-block, stand under it and start jumping very fast. It can be one or more coins, but also a P-cloud, a cape feather, a Fire Flower, a Super Mushroom, a 1-up, or a Yoshi egg. You can smash the item out by smashing the block with your cape, but if you're riding on Yoshi, you can also eat the item out. The item inside the block changes every second. Glass blocks are translucent blocks with an item inside. Just hit the block first, then step on the switch and guard the blocks into the direction that you want. You can also combine this technique with a block that produces a 'wire' of coins. For a short period, you'll hear a timer and all of the solid blocks will turn into coins, but all coins that were in the same room before you pressed the switch will now turn into solid blocks, creating walls but sometimes also new paths for you. Solid blocks are blocks that you can't break, but you can turn them into coins! To do this, step on a blue P-switch (not the one in the blue switch palace, but a small switch that you can grab and take it with you). The block stops producing coins after a few seconds or if the first coin hits an obstacle. You can move the wire of coins in the direction that you want by just pressing the same direction on the + pad. There are also yellow blocks that will produce a long 'wire' of coins if you jump against them. After the item has come out of the block, the block will turn into a solid block.

Note that if you jump against the most left underside of those blocks, the item will start moving to the right, and if you jump against the most right underside of the block, the item will start moving to the left. Jumping against the underside of these blocks will pop the item out. Some yellow blocks have coins or an item (such as a Super Mushroom or a Fire Flower) inside them. Of course, you must stand under the block so that you can jump against the underside of the block. If there are enemies walking over a yellow block, you can defeat them very easily just by jumping against the block they're walking or flying over. Keep holding the button and Yoshi will break the yellow blocks.

Land while spin-jumping and holding the button (in the SNES-version the A-button) on Yoshi. You will dismount Yoshi, but you'll also do a spin jump.

To break yellow blocks with Yoshi, stand with Yoshi on a yellow block, then do a spin jump. To break a yellow block, stand on it and do spin jump, then land on the yellow block while spin-jumping. Instead of breaking, they'll start to spin and you can just jump through them. The main difference with the brick blocks of previous Super Mario games is that you can't break them by jumping against their underside. They're one meter (39.37 inch) high, they're one meter width and one meter long. Yellow blocks are cubic-shaped, yellow blocks with two eyes. In Super Mario Bros, it is said that they are people of the Mushroom Kingdom that were turned into blocks by Bowser. For example, the brown brick blocks have disappeared and are replaced by a yellow block with two eyes. Some blocks appeared in previous Super Mario games, but the most of them are new or are changed. In Super Mario World, there are several types of blocks.

Green and blue blocks