Blue Coin Block

From the Super Mario Wiki

The Blue Coin Block from Super Mario 64.

The Blue Coin Block is an object found in Super Mario 64.

The Blue Coin Block is actually more of a button then just a Block. When Mario finds one of them, Mario can Ground Pound this object. When Mario Ground Pounds the object, the Blue Coin Block disappears as Blue Coins showed up in the level near to Mario. The time starts ticking as Mario has to get them with a time limit. When the time goes fast, Mario has little time on getting the Blue Coins. When the time is up, the Blue Coins disappear as the original music continues to play depending on the level.

Super Mario 64/Super Mario 64 DS

Protagonists	Bob-omb Buddy \| Mario \| Luigi \| Wario \| Yoshi \| Dorrie \| Headless Snowman \| Hoot the Owl \| Klepto \| Koopa the Quick \| MIPS \| Penguin \| Princess Peach \| Toad \| Tuxie
Bosses	Big Bob-omb \| Big Bully \| Big Mr. I \| Bowser \| Chief Chilly \| Chill Bully \| Eyerok \| Goomboss \| King Boo \| Whomp King
Items	Power Star \| Yellow Coin \| Blue Coin \| Red Coin \| Silver Star \| 1-Up Mushroom \| Mushroom \| Power Flower \| Wing Cap \| Vanish Cap \| Metal Cap
Objects and Obstacles	Bill Blaster \| ! Block \| ! Switch \| ? Block \| ? Switch \| Blue Coin Block \| Crystal Tap \| Green Shell \| Cannon \| Star Marker \| Crazed Crate \| Donut Lift \| Lava \| Pushy Walls \| Pyro Box \| Spinning Heart \| Treasure Chest
Locations	Bob-omb Battlefield \| Whomp's Fortress \| Jolly Roger Bay \| Cool, Cool Mountain \| Big Boo's Haunt \| Hazy Maze Cave \| Lethal Lava Land \| Shifting Sand Land \| Dire, Dire Docks \| Snowman's Land \| Wet-Dry World \| Tall, Tall Mountain \| Tiny-Huge Island \| Tick Tock Clock \| Rainbow Ride \| Tower of the Wing Cap \| Vanish Cap Under the Moat \| Cavern of the Metal Cap \| The Princess's Secret Slide\| The Secret Aquarium \| Wing Mario Over the Rainbow \| Bowser in the Dark World \| Bowser in the Fire Sea \| Bowser in the Sky \| Roof \| Sunshine Isles \| Battle Fort \| Goomboss Battle \| Big Boo Battle \| Chief Chilly Challenge \| Downtown \| Igloo \| Volcano
Enemies	Amp \| Bob-omb \| Big Boo \| Bully \| Boo \| Bookend \| Bub \| Bubba \| Bullet Bill\| Chain Chomp \| Cheep-Cheep \| Chuckya \| Fire Chomp (DS version only) \| Fly Guy \| Fwoosh \| Goomba \| Grand Goomba \| Grindel \| Heave Ho \| Koopa Troopa \| Lakitu \| Mad Piano \| Manta \| Micro-Goomba \| Moneybags \| Monty Mole \| Mr. Blizzard \| Mr. I \| Piranha Plant \| Pokey \| Scuttle Bug \| Skeeter \| Snufit \| Spindel \| Spindrift \| Spiny \| Sushi \| Swooper \| Thwomp \| Tox Box \| Tweester \| Ukiki \| Unagi \| Unagi the Eel \| Whomp \| Wiggler