Block

Blocks are environmental units appearing in the Super Smash Bros. games that come in different colors, designs, sizes, and functions. Standard blocks act as unbreakable parts of the environment, while other blocks can be interacted with or broken. These unique blocks are listed below.

Brick Blocks
From the series. break when hit. They slow the knockback of characters flying into them, and can be teched on.
 * - respawn after a while; two or all of them may reappear as ? Blocks.
 * Stage 1 of Adventure Mode - same as in the Mushroom Kingdom stage, though they don't reappear.
 * Mushroomy Kingdom - have a more rustic and aged appearance, like the stage; sturdier against weaker attacks and respawn once the stage loops.
 * Certain levels in Subspace Emissary
 * 3D Land - same as in Mushroomy Kingdom, though they retain their modern appearances.
 * Super Mario Maker - retain their appearances from the respective game styles; the cursor periodically replaces broken Brick Blocks.
 * Smash Run - same as in 3D Land.

? Blocks
From the Mario series. release an item when hit. They slow the knockback of characters flying into them, and can be teched on as well.
 * - break when hit; two or all blocks may reappear as ? Blocks.
 * Mushroomy Kingdom - have a more rustic and aged appearance, like the stage; they empty themselves when hit rather than breaking and are refilled once the stage loops.
 * 3D Land - same as in Mushroomy Kingdom, though they have high chances of releasing a Super Leaf, and retain their modern appearances.
 * Super Mario Maker - have high chances of releasing Mario items and retain their appearances in all styles, with the cursor periodically refilling empty ? Blocks.

! Blocks
From the Mario series. appear upon pressing switches, releasing an item when hit. They slow the knockback of characters flying into them, and can be teched on.
 * Princess Peach's Castle - these particular blocks come in green, blue, and red colors and appear when a switch of the same color is pressed somewhere on the castle. Unlike ? Blocks in Melee, they empty themselves, rather than breaking, when hit, and also do so when touched from any angle.

Rotating Blocks
From the Mario series. are yellow with eyes. They rotate when hit, allowing players to go through them. They eventually stop rotating and can be hit again. They slow the knockback of characters flying into them, and can be teched on as well.
 * Super Mario Maker - replace Brick Blocks in the Super Mario World version of the stage. The cursor eventually stops spinning Rotating Blocks.
 * Super Mario Maker - replace Brick Blocks in the Super Mario World version of the stage. The cursor eventually stops spinning Rotating Blocks.

Donut Blocks
From the Mario series. are yellow blocks with holes in the center that fall after a character or item lays on top of them briefly. After dropping, they reappear after a set amount of time.
 * Rainbow Cruise - resemble those that appear in Super Mario 64, and respawn once the stage loops.
 * 3D Land - resemble those that appear in Super Mario 3D Land, and respawn once the stage loops.
 * Super Mario Maker - resemble those that appear in the respective game style. The cursor replaces dropped Donut Blocks.

POW Blocks
From the Mario series. POW Blocks deal high knockback to grounded foes when attacked or thrown.
 * - appears suspended in the air at certain points, dealing 20% damage and high knockback when attacked; each can be hit only once before disappearing.
 * Mario Bros. - appears in the middle of the bottom part of the stage; though it deals no damage, it can be used three times, compressing with each use.
 * An item in Super Smash Bros. 4 - can be picked up and thrown, dealing 10% damage and high knockback, compressing with each use; can be dropped, dealing 13% damage and mild knockback to whoever it hits, but does not activate upon impacting the ground.

Star Blocks
From the series. fall from the sky and stack on top of each other. They break when hit and teched on. Characters thrown into the blocks (especially from afar) will be bounced back.
 * Green Greens - appear on either side of the stage in between the main and outer two platforms, falling from the sky and landing on candy cane-colored railing, which appears to connect each platform.

Bomb Blocks
From the Kirby series. Bomb Blocks explode and deal large amounts of damage and knockback when hit. The invincibility frames characters get from teching protect them from the explosions should they ever be knocked into one from below.
 * Green Greens - occasionally fall instead of Star Blocks; also break other surrounding Star Blocks or Bomb Blocks when detonated.

Ice blocks
Ice blocks have less traction, so characters slip and slide, and in Brawl, they can even trip while walking and running on them.
 * Icicle Mountain - breakable blocks that come in small and large sizes. Characters bounce off of them when thrown into them.
 * The Summit - a breakable, blue sloped wedge of ice appears in the center of the stage.
 * Stage Builder - unbreakable, and can be expanded horizontally to three times its normal length
 * Super Mario Maker - Ice Blocks can randomly spawn in a stage setup.

Drop Blocks
Original to Super Smash Bros., but analogous to Donut Blocks. After a character or item rests on it for a brief period of time, they shake and quickly plummet. Characters can wall cling on them without making them drop. When used on custom stages, drop blocks are able to fall right through characters and other platforms.
 * Stage Builder - slower, larger, and come in 1x3, 2x4, and 3x5 sizes. When dropping, they fall through characters and platforms, and reappear soon after they fall.
 * Subspace Emissary - faster, smaller, usually placed over a gap, spikes, or water and between a character and a target. These drop blocks do not reappear, except in Subspace (Part I).

Minecraft Blocks
From. These blocks can be broken by fighters jumping, attacking, and being knocked into them, though unlike Brick Blocks which are destroyed upon any impact, Minecraft Blocks can resist a certain amount of damage, which varies depending on the block's material. They can also be destroyed by Steve's mining, and produce materials for his use. While aesthetically similar to the blocks Steve can place, these blocks, as part of the stage, can exist indefinitely without player interference.
 * Minecraft World - featured prominently in several different materials, and can be removed by toggling off Stage hazards in Ultimate. Blocks making up the main platform of the stage, including those in battlefield and Ω forms, cannot be broken.